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Littérature scientifique sur le sujet « Tumor diagnosis »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "Tumor diagnosis"

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CADAR, Ramona, et Dumitru MATEI. « Positive diagnosis in the small bowel tumor ». Romanian Journal of Medical Practice 11, n^o 2 (30 juin 2016) : 143–46. http://dx.doi.org/10.37897/rjmp.2016.2.7.

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The small bowel tumor diagnosis is often late, in the course of this affection, which is explained by the low number of tumors and crude symptomatology (abdominal pain, wight loss, queasiness, vomit, ocult bleeding of gastro-intestinal tract). There is no unique investigation method of the small bowel for patient suspect of SMT. Choices are either X-ray (CT-scan, enteroclysis etc.) or endoscopic (upper endoscopy, wireless video endoscopy etc.). It has not been decided upon the best strategy or the series of investigations. The patient usually requires full imagistic explorations; laparotomy being sometimes useful in the selection of a positive diagnosis.

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Ballhause, Tobias M., Alexander Korthaus, Martin Jahnke, Karl-Heinz Frosch, Jin Yamamura, Tobias Dust, Carsten W. Schlickewei et Matthias H. Priemel. « Lipomatous Tumors : A Comparison of MRI-Reported Diagnosis with Histological Diagnosis ». Diagnostics 12, n^o 5 (21 mai 2022) : 1281. http://dx.doi.org/10.3390/diagnostics12051281.

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Lipomatous tumors are among the most common soft tissue tumors (STTs). Magnetic resonance imaging (MRI) is a state-of-the-art diagnostic tool used to differentiate and characterize STTs. Radiological misjudgment can lead to incorrect treatment. This was a single-center retrospective study. Two hundred and forty lipomatous tumors were included. MRI diagnoses were categorized as benign, intermediate, or malignant and were compared with histological diagnoses. Tumor volumes were measured by MRI and from surgical specimens. The tumor was correctly categorized 73.3% of the time. A total of 21.7% of tumors were categorized as more malignant in MRI reports than they were by histology, and vice versa for 5.0% of tumors. Volume measured by MRI was not different from actual tumor size in pathology. Atypical lipomatous tumors (ALTs) and liposarcomas (LPSs) were larger when compared with lipomata and occurred in older patients. Based on the MRI-suspected tumor entity, surgical treatment can be planned. Large lipomatous tumors in elderly patients are more likely to be ALTs. However, a safe threshold size or volume for ALTs cannot be determined.

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Arita, Kazunori, Makiko Miwa, Manoj Bohara, FM Moinuddin, Kiyohisa Kamimura et Koji Yoshimoto. « Precision of preoperative diagnosis in patients with brain tumor – A prospective study based on “top three list” of differential diagnosis for 1061 patients ». Surgical Neurology International 11 (28 mars 2020) : 55. http://dx.doi.org/10.25259/sni_5_2020.

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Background: Accurate diagnosis of brain tumor is crucial for adequate surgical strategy. Our institution follows a comprehensive preoperative evaluation based on clinical and imaging information. Methods: To assess the precision of preoperative diagnosis, we compared the “top three list” of differential diagnosis (the first, second, and third diagnoses according to the WHO 2007 classification including grading) of 1061 brain tumors, prospectively and consecutively registered in preoperative case conferences from 2010 to the end of 2017, with postoperative pathology reports. Results: The correct diagnosis rate (sensitivity) of the first diagnosis was 75.8% in total. The sensitivity of the first diagnosis was high (84–94%) in hypothalamic-pituitary and extra-axial tumors, 67–75% in intra-axial tumors, and relatively low (29–42%) in intraventricular and pineal region tumors. Among major three intra-axial tumors, the sensitivity was highest in brain metastasis: 83.8% followed by malignant lymphoma: 81.4% and glioblastoma multiforme: 73.1%. Sensitivity was generally low (≦60%) in other gliomas. These sensitivities generally improved when the second and third diagnoses were included; 86.3% in total. Positive predictive value (PPV) was 76.9% in total. All the three preoperative diagnoses were incorrect in 3.4% (36/1061) of cases even when broader brain tumor classification was applied. Conclusion: Our institutional experience on precision of preoperative diagnosis appeared around 75% of sensitivity and PPV for brain tumor. Sensitivity improved by 10% when the second and third diagnoses were included. Neurosurgeons should be aware of these features of precision in preoperative differential diagnosis of a brain tumor for better surgical strategy and to adequately inform the patients.

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Royero-Arias, Mónica Rocío, Luis Carlos Salazar-Díaz et Luz Ángela Moreno-Gómez. « Wilms or non-Wilms tumors ? Imaging features of renal tumors in pediatrics. » Revista de la Facultad de Medicina 70, n^o 1 (19 avril 2021) : e88323. http://dx.doi.org/10.15446/revfacmed.v70n1.88323.

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Introduction: Identifying the imaging features of renal tumors in pediatric population allows reaching more accurate diagnoses and implementing more appropriate treatments. Objective: To describe the imaging findings of renal tumors in children and to assess the association between imaging findings and histological diagnosis of Wilms tumors versus Non-Wilms tumors, and between imaging features and intraoperative rupture of Wilms tumors, as well as the level of agreement between radiological and histological diagnosis (Wilms vs. Non-Wilms tumor). Materials and methods: Cross-sectional study conducted in 47 children with a kidney tumor pathological diagnosis treated between 2012 and 2018 in a pediatric hospital in Bogotá, Colombia. The patients’ medical records, as well as their ultrasound, tomography and magnetic resonance studies were reviewed. Two univariate logistic regression analyses were performed to assess the association between imaging findings and histopathological diagnosis and between imaging features and intraoperative rupture of Wilms tumors, calculating the respective Odds Ratio (OR) with a 95% confidence interval. In addition, the level of agreement between radiological and histological diagnosis was determined using the Kappa coefficient. Results: A significant association was found between histological diagnosis of Wilms tumor and the presence of necrosis, tumor enhancement, pseudocapsule, rupture signs, tumor volume and tumor size (OR: 21.6, 15.17, 14.57, 8.21, 7.93 and 4.37, respectively; p<0.05). An association between having Wilms tumor and lower frequency of metastases was also found (OR: 0.19; p<0.05). The Kappa coefficient between radiological diagnosis of Wilms/non-Wilms tumors and histological findings was 0.78 (95%CI: 0.59-0.96; p<0.05). Additionally, Wilms tumors volume was significantly associated with the occurrence of rupture (OR: 3.08; p<0.05). Conclusions: There are imaging findings such as necrosis, tumor enhancement and tumor volume that can help predict the histological diagnosis and intraoperative rupture risk of Wilms tumors.

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Shadab, Shahali, et Tadayon Tadayon. « Histopathological diagnosis of ovarian mass ». Journal of Pathology of Nepal 8, n^o 1 (3 avril 2018) : 1261–64. http://dx.doi.org/10.3126/jpn.v8i1.19448.

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Background: Ovarian cysts are common forms of gynecological problems that can be range from physiological cysts to highly aggressive neoplastic lesions. The purpose of this study was to investigate prevalence and frequency of different histopathological patterns of ovarian lesions and their correlation with various parameters in Ahvaz, Iran.Materials and Methods: This is the retrospective study of patients with the ovarian masses at Ahvaz Imam Khomeini Hospital from 2010 - 2015. The relevant clinical details about the patient were retrieved from hospital data. Clinical characteristics of patients such as patient's age, presenting signs and symptoms, histopathological diagnosis, mass type, mass subtype, size of cysts and ovary which is involved were noted. Results: Two hundred sixty seven specimens of ovarian tumor obtained for histopathological examination. Of these, 163(61.0%) were tumor like, 96(36.0%) were benign tumor and 8(3.0%) were malignant. The most common tumor like conditions was Corpus luteum cyst (43.4% cases), among benign and malignant tumors, mature cystic teratoma (17.2% of total) and Epithelial tumors (n=4) were most common. There is a statistically significant positive relation between age and various ovarian masses. (P= 0.002). Histopathological diagnosis wasn't correlated with ovarian involvement.Conclusion: Benign tumors are more common than malignant tumors in all age groups. Germ cell tumors followed by surface epithelial cell tumors are the commonest tumor. Mature cystic teratoma was the most common tumor. Unilaterality is more frequently seen in ovarian tumors and various tumors are seen in various age groups.

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Chand, Priyanka, Pratima Khare, Renu Gupta, Sonam Kumar Pruthi, Mukta Ahuja et Aditi Jha. « Diagnostic Evaluation of Skin Adnexal Tumors by Fine-Needle Aspiration Cytology ». Acta Cytologica 60, n^o 3 (2016) : 246–53. http://dx.doi.org/10.1159/000447733.

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Background: The diagnosis of skin adnexal tumors is usually based on histopathology. However, fine-needle aspiration cytology (FNAC) can be of great help and shows a high degree of correlation to the final diagnosis. It is helpful in many situations where skin lesions are a manifestation of certain systemic syndromes and aids to the formation of precise treatment plans. Materials and Methods: This prospective study was carried out to assess the diagnosis of skin adnexal tumors based on FNAC and their comparison with histopathological diagnoses. There were 14 patients with FNAC and histopathological follow-up in whom a final diagnosis of skin adnexal tumor was made. The results of FNAC were compared with histopathological diagnoses for complete correlation, partial correlation (cases where an FNAC diagnosis of skin adnexal tumor was made but a precise diagnosis of the subtype was not possible) or no correlation (where FNAC failed to diagnose a skin adnexal tumor). Results: Among the 14 cases of skin adnexal tumor, there was total correlation between the FNAC diagnosis and final histopathological diagnosis in 8 cases (57.1%) and a partial correlation in 4 cases (28.5%). There was no correlation of the FNAC diagnosis with the histopathological diagnosis in only 2 cases (14.3%). Conclusions: FNAC is very useful in making a diagnosis of skin adnexal tumors and helps in the management of the patient.

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Euscher, Elizabeth D. « Unusual Presentations of Gynecologic Tumors : Extragonadal Yolk Sac Tumor of the Vulva ». Archives of Pathology & ; Laboratory Medicine 141, n^o 2 (13 décembre 2016) : 293–97. http://dx.doi.org/10.5858/arpa.2016-0151-sa.

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Extragonadal germ cell tumors are uncommon, and although they morphologically resemble their gonadal counterparts, unexpected gonadal presentation increases the potential for erroneous diagnoses. Yolk sac tumor is a malignant germ cell tumor characterized by an extraembryonic yolk sac line of differentiation, and relative to other germ cell tumors, is characterized by varied and diverse histologic patterns. When occurring outside of typical age parameters or in extragonadal locations, the histologic variability of yolk sac tumor and its tendency to mimic somatic tumors pose diagnostic challenges. Because extragonadal yolk sac tumor of the vulva is very rare, with only isolated case reports and small series in the literature, it is often not considered in the differential diagnosis. As both prognosis and management of yolk sac tumor differ significantly from those of somatic tumors, accurate diagnosis is essential. This review discusses histologic features of extragonadal yolk sac tumor, addresses somatic tumors arising in the vulva for which yolk sac tumor may be confused, and provides guidance with respect to the use of immunohistochemistry in the diagnosis of yolk sac tumor.

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Hadi, Bayu Antara, et Mouli Edward. « Tumor Mimicking in Musculoskeletal System in Surabaya : A Case Series ». Qanun Medika - Medical Journal Faculty of Medicine Muhammadiyah Surabaya 4, n^o 1 (27 janvier 2020) : 111. http://dx.doi.org/10.30651/jqm.v4i1.2652.

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ABSTRACTMusculoskeletal tumors are potential causes of heavy morbidity and economic burdens for patients. There are often cases suspected as musculoskeletal tumors based on a specific diagnostic modality because of overlapping features upon physical examination or a tumor-like appearance from the radiological examination, the more reason for triple diagnosis to be performed for an exact diagnosis. We report 5 cases of fractures tumor-mimicking lesions. The First patient, a patient with MRI revealing a primary malignant bone tumor, but with plain thorax x-ray and FNAB, the diagnosis was tuberculosis arthritis of the elbow. The second patient shows metastatic proses with plain radiographic, but from open biopsy, the diagnoses fall to chronic osteomyelitis. The third patient had a history of papillary carcinoma thyroid with pathological fracture of proximal of the left femur, but the biopsy shows a hypercalcemic state. The fourth patient, had mass size 20x15 cm at the thigh, but the biopsy shows Non-Specific Chronic Osteomyelitis. The fifth patient with progressive swelling of the left knee for one year, 10x10 cm in size, the biopsy showed no sign of malignancy but tuberculosis of left distal femur. In conclusion, standard comprehensive diagnosis steps consisting of clinical history, imaging, laboratory and histopathological examinations are crucial to differentiate tumor-mimicking lesions from neoplasms, thus ensuring proper treatment.Keywords: Tumour mimicking, osteosarcoma, chondroma, malignancy

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Wedad Abdul Khuder Naser *. « Brain tumor classification and diagnosis techniques ». Global Journal of Engineering and Technology Advances 10, n^o 2 (28 février 2022) : 071–74. http://dx.doi.org/10.30574/gjeta.2022.10.2.0036.

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One of the leading causes of increased mortality in both children and adults is a brain tumor. Tumor is a severe issue that has taken over the usual force that controls growth. On MRI pictures, there are several techniques for classification and detecting a brain tumor region. We present background reviews of many proposed techniques for detecting brain tumors in this paper. There is a lot of literature on diagnosing and improving the accuracy of this type of brain tumor.

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Bannowsky, Andreas, Andreas Probst, Helmut Dunker et Tillmann Loch. « Rare and Challenging Tumor Entity : Phyllodes Tumor of the Prostate ». Journal of Oncology 2009 (2009) : 1–3. http://dx.doi.org/10.1155/2009/241270.

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Cystic epithelial-stromal tumors of the prostate are rare, with 82 cases reported in literature. These cases have been published under a variety of diagnoses, including phyllodes tumor and prostatic stromal proliferation of uncertain malignant potential as well as a malignant tumor called “prostatic stromal sarcoma”. We report a case of a 60-year-old man with the histological diagnosis of phyllodes tumor of the prostate in transurethral resection specimen.

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Thèses sur le sujet "Tumor diagnosis"

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Lyshchik, Andrej. « Thyroid gland tumor diagnosis at US elastography ». Kyoto University, 2007. http://hdl.handle.net/2433/135684.

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Langer, Michael. « Peptides as carrier for tumor diagnosis and treatment / ». [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13986.

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Eaton, Michael Campbell. « Assessment of CD44 and K19 as markers for circulating breast cancer cells using immunobead RT-PCR / ». Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09MD/09mde14.pdf.

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Roller, Benjamin Thomas. « A nanoencapsulated visible dye for intraoperative delineation of brain tumor margins ». Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42805.

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Brain and central nervous cancer presents a significant clinical burden, accounting for 2.4% of all cancer deaths. High grade glioma is particularly deadly, with 5 year survival times of 35% or less. Traditional treatment includes tumor resection followed by radiation therapy or chemotherapy. Aggressive resection is essential in order to prolong patient life. In fact, several studies have shown that life expectancy increases with increased extent of resection. Extent of resection is burdened by the fact that surgeons must be careful not to remove functional brain tissue. Resection is incomplete more often than not due to lack of visual cues for the surgeon. He must rely on tactile sensation to distinguish tumor from healthy tissue. Methods such as intraoperative MRI and CT exist, but these require expensive equipment and special training that is not available in all surgical environments. Some laboratories have proposed small molecule dyes to solve this problem, but these are insufficient when used in an invasive tumor model. It was the goal of this research to provide an objective cue in the form of a nanoencapsulated visible dye without the need for additional equipment of changes to the surgery process itself other than injection of the dye. We hypothesized that the nanocarrier would allow staining of the tumor through passive targeting by taking advantage of the enhanced permeability and retention effect. Once the nanocarriers have reached the desired target, they would not diffuse out into healthy tissue due to their large size compared to small molecule dyes, which readily diffuse out and stain healthy tissue. To test this hypothesis, we prepared and characterized a liposomal nanocarrier encapsulating Evans blue dye. The nanocarrier was tested for safety in vitro and in vivo, then used to delineate tumor margins in an invasive rat glioma model in vivo. Microscopic analysis was then conducted to ensure only tumor tissue was stained by the nanocarrier. This thesis presents a successful method of tumor border delineation to provide surgeons with positive visual cues without the need for changes in surgical environment or techniques.

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Grifantini, Renata Maria <1962&gt. « Identification and characterization of novel tumor-associated proteins as potential tumor markers for diagnosis and therapy ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6479/1/Tesi_PhD_Grifantini.pdf.

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This study deals with the discovery and characterization of EXN6 and EXN11 as novel tumor-associated proteins. EXN6 is mainly present in breast and ovary cancers (40 and 35%) while EXN11 is mainly detected in primary and metastatic colon cancer (40%). A characterization of the two proteins confirmed that they could be novel targets for cancer therapy.

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Grifantini, Renata Maria <1962&gt. « Identification and characterization of novel tumor-associated proteins as potential tumor markers for diagnosis and therapy ». Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6479/.

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This study deals with the discovery and characterization of EXN6 and EXN11 as novel tumor-associated proteins. EXN6 is mainly present in breast and ovary cancers (40 and 35%) while EXN11 is mainly detected in primary and metastatic colon cancer (40%). A characterization of the two proteins confirmed that they could be novel targets for cancer therapy.

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Richards, Homa Lisa Ann. « Perceptions of Caregivers Following Diagnosis of Primary Benign Brain Tumor ». ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7422.

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A brain tumor diagnosis is traumatic and has a devastating impact upon the caregiver and the family unit. The effects of the tumor growth and treatment often cause significant neurologic injury and dramatically affect the quality of life (QOL) for the patient and their entire family unit. Caregivers are constantly challenged to provide care, yet they feel untrained and underprepared as they struggle to adjust to new roles and responsibilities. The purpose of this study is to gain an understanding of the lived experiences of caregivers of individuals with primary benign brain tumor (PBBT). An interpretive phenomenological analysis approach was used to explore the experiences of 10 caregivers. Bowen's family systems theory provided an understanding of how families respond to changes in their family system resulting from a member of the family having a PBBT. A nonprobability sampling technique was used to recruit participants from 2 virtual support groups. Data were collected through semistructured interviews guided by an interview template. Interviews were transcribed and analyzed following the Smith tradition of inquiry until data saturation was reached. Three major themes emerged from the data: experiencing new challenges, responding to initial diagnosis, and facing challenges with family and friends. Caregivers experience a wide variety of responsibilities that are physically and psychologically challenging, which can negatively affect the QOL for the caregiver and the patient. These findings can be used by healthcare providers to identify resources to alleviate the unanticipated demands caregivers experience. Future studies are needed to explore how best to decrease challenges experienced by caregivers of individuals with PBBT.

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Sabharwal, Yashvinder Singh 1970. « Remote-access slit-scanning confocal microscope for in vivo tumor diagnosis ». Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/284035.

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Microscopic fluorescence imaging of thick biological tissue has been successfully demonstrated with a fiber-based, slit-scanning, confocal microscope. The system developed under this research consists of an illumination arm, a fiber-optic imaging system, and a detection arm. The illumination arm is an anamorphic optical system that converts a circular, laser beam into a cylindrical beam forming a line image at the proximal face of the fiber-optic relay. This relay system is comprised of a fiber-optic imaging bundle, a miniature objective lens, and a miniature hydraulic positioning mechanism. It delivers illumination to a remote sample and simultaneously collects the fluorescence from the sample. The miniature objective lens and positioning mechanism were specially designed and fabricated for this system, allowing for high resolution imaging and optical sectioning in-vivo. The detection arm relays the fluorescence image at the proximal face of the fiber-optic relay with magnification onto a two-dimensional CCD. Characterization of the system has demonstrated a lateral resolution of three microns. The axial resolution when imaging a point object is 10 microns. When imaging a planar object, the axial resolution is 25 microns. Images are acquired at a rate of 2-4 frames per second and the imaging performance has been evaluated with different biological models including animal peritoneal tissue and human prostate tissue in-vitro. In-vivo images of human skin and rat peritoneum have also been acquired to demonstrate that patient motion does not adversely affect the performance of the system. These in-vitro and in vivo images demonstrate the capability of the system to resolve cell nuclear morphology, to visualize cell density and organization, and to image at selected depths below the tissue surface.

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COLOMBO, MIRIAM. « Synthesis and biofunctionalization of nanoparticles for breast cancer diagnosis and treatment ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/28928.

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The early identification of the insurgence of a malignant cancer and the selective targeting of the tumor with specific drugs are still an open frontier for cancer diagnosis and treatment. The ultimate goal is to improve the therapy efficiency and to reduce the side effects usually encountered with conventional chemotherapy. Worldwide, mammary carcinoma represents the second most recurrent type of malignant tumor in adult women and the fifth cause of death among cancer types. In the context of this thesis, I have designed and developed multifunctional hybrid nanoparticles consisting of an inorganic iron oxide core, useful as source of signal for magnetic resonance imaging (MRI), and an organic shell, including bioactive ligands for the pharmacological effect combined with specific cell targeting, and a molecular dye as fluorescence signal emitter. The nanoparticle characteristics were optimized in terms of size, morphology, surface charge, stability, fluorescence emission and capability to enhance the MRI contrast. In addition, specific biomolecular ligands based on anti-HER-2 monoclonal antibody have been developed and novel strategies for their conjugation to nanoparticles were explored. The resulting hybrid nanocomplexes were tested both in vitro and in vivo to evaluate their toxicity, endocytosis, degradation pathways, and the efficient recognition of cell-surface biomarkers. Next, these nanoparticles proved to be highly effective in selectively targeting breast cancer cells in transplanted mice bearing HER-2-positive tumors. A multifaceted bioanalytical approach, combining fluorescence, magnetic relaxivity, transmission electron microscopy, and histological experiments in vivo and ex vivo, has demonstrated that these nanoprobes prevalently accumulated at the tumor by an active targeting route. The nanoparticles were endocytosed by the tumor cells following a lysosomal pathway of degradation, while did not result in permanent damage of healthy tissues. The principal outcome of this work was the development of a versatile and reliable biotechnological platform based on finely structured, multifunctional nanosized probes useful for the interrogation of biological systems.

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Tong, Amanda Kai-Lai. « Brilliant Baby Brainiacs (BBB) - Pediatric Brain Tumors : Assessing Healthcare Provider Knowledge ». Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/593599.

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Background: Brain tumors are the most common solid tumors found in children. Current research is determining whether diagnosing brain tumors earlier will help improve prognosis and reduce long-term deficits; however, childhood brain tumors are often diagnosed late with a median time of 1-4 months from onset of symptoms. Prolonged symptom intervals before diagnosis have been associated with life-threatening risks, neuro-cognitive disabilities, and detrimental professional relationships between healthcare providers and families. Pediatric brain tumor clinical presentations are often non-specific and resemble less serious illnesses; therefore, healthcare providers are failing to include this in their differential diagnoses list. Purpose: To assess healthcare provider knowledge of signs and symptoms of pediatric brain tumors using The Brain Pathways Guideline. Methods: A one group pre-test and post-test e-mailed separately to nurse practitioners that have active membership in National Association of Pediatric Nurse Practitioners (NAPNAP) Arizona Chapter. Results: The Wilcoxon Signed Rank Test revealed that the matched test scores were not statistically significant (p=0.157) after viewing The Brain Pathways Guideline educational materials. Conclusion: The results of this study did not show a statistically significant difference in the test scores and therefore it cannot be concluded that presenting an evidence-based guideline to assist healthcare providers to assess and diagnose patients with brain tumors will be helpful to improve pre-diagnostic symptom intervals.

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Livres sur le sujet "Tumor diagnosis"

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Russo, Jose, dir. Immunocytochemistry in Tumor Diagnosis. Boston, MA : Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2615-1.

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Picci, Piero, Marco Manfrini, Davide Maria Donati, Marco Gambarotti, Alberto Righi, Daniel Vanel et Angelo Paolo Dei Tos, dir. Diagnosis of Musculoskeletal Tumors and Tumor-like Conditions. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-29676-6.

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C, Ghosh Bimal, et Ghosh Luna, dir. Tumor markers and tumor-associated antigens. New York : McGraw-Hill, 1987.

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Hamburger Symposium über Tumormarker. (5th 1989 Hamburg, Germany). Recent results in tumor diagnosis and therapy : 5th Symposium on Tumor Markers, Hamburg. München : Zuckschwerdt, 1990.

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Den, Otter W., et Ruitenberg E. Joost, dir. Tumor immunology : Mechanisms, diagnosis, therapy. Amsterdam : Elsevier, 1987.

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M, Osborn, Weber Klaus Dr Prof et Banbury Center, dir. Cytoskeletal proteins in tumor diagnosis. Cold Spring Harbor, N.Y : Cold Spring Harbor Laboratory, 1989.

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Deborah, Chang, dir. Tumor markers research focus. Hauppauge, N.Y : Nova Science Publishers, 2006.

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Moran, Cesar. Tumors and tumor-like conditions of the lung and pleura. Philadelphia : Saunders/Elsevier, 2010.

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Eissa, Saad. Tumor markers. London : Chapman & Hall, 1998.

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1935-, Sell Stewart, dir. Serological cancer markers. Totowa, N.J : Humana Press, 1992.

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Chapitres de livres sur le sujet "Tumor diagnosis"

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Tsui, Wilson M. S., Takahiro Mori et Masaki Iwai. « Liver Tumor I : Benign Tumors and Tumor-Like Lesions ». Dans Diagnosis of Liver Disease, 211–33. Singapore : Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6806-6_16.

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Li, Xinwei, et Cong Li. « Tumor Diagnosis Patterns ». Dans New Nanomaterials and Techniques for Tumor-targeted Systems, 87–133. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5159-8_5.

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Yang, Yi, et Wei Guo. « Diagnostic Imaging and Differential Diagnosis ». Dans Surgery of the Pelvic and Sacral Tumor, 169–82. Dordrecht : Springer Netherlands, 2020. http://dx.doi.org/10.1007/978-94-024-1945-0_22.

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Sarioglu, Sulen. « Tumor Deposits ; Mechanisms, Morphology, and Differential Diagnosis ». Dans Tumor Deposits, 37–55. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-68582-3_2.

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Chan, Kwan-Leung, et John P. Veinot. « Neoplasm, Cardiac Tumor ». Dans Anatomic Basis of Echocardiographic Diagnosis, 349–73. London : Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-387-9_13.

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Fan, Guoguang. « Differential Diagnosis of Brain Tumors and Tumor-Like Lesions ». Dans Atlas of Differential Diagnosis, 5–37. Singapore : Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9759-3_2.

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Manfrini, Marco. « Giant Cell Tumor ». Dans Diagnosis of Musculoskeletal Tumors and Tumor-like Conditions, 101–5. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29676-6_22.

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Picci, Piero, et Angelo Paolo Dei Tos. « Nerve Sheath Tumor ». Dans Diagnosis of Musculoskeletal Tumors and Tumor-like Conditions, 273–76. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29676-6_43.

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Russo, Irma H. « Organization of an Immunocytochemistry Laboratory ». Dans Immunocytochemistry in Tumor Diagnosis, 1–11. Boston, MA : Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2615-1_1.

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Lee, I., W. W. Franke et V. E. Gould. « Immunohistochemistry of Neuroendocrine Neoplasms of the Bronchopulmonary Tract and Skin ». Dans Immunocytochemistry in Tumor Diagnosis, 174–82. Boston, MA : Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2615-1_10.

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Actes de conférences sur le sujet "Tumor diagnosis"

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Queiroz, Andrei Alves de, Gustavo Machado Badan, Marilucia Batina Fernandes Moreira et Amanda Neves Machado. « IMPACT OF COVID-19 ON BREAST CANCER TUMOR SIZE AT DIAGNOSIS ». Dans Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1006.

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Introduction: In 2020, COVID-19 affected the whole world, determining a pandemic situation, with recommendations for social isolation and lockdown. In the state of São Paulo, the shutdown of non-essential services was determined on March 22, 2020. Medical appointments and routine imaging exams were postponedand little is known about the impact on screening delay and the diagnosis of neoplasms. Considering that survival and cure of breast cancer are directly related to an early diagnosis, the size of these malignant tumors can be used in researching the delay in breast cancer diagnoses. Objectives: To evaluate the impact of the pandemic on the size of breast cancer in histological diagnosis, as well as on the number of diagnostic procedures performed at our hospital. Methods: Through a retrospective, analytical and crosssectional study, we analyzed data regarding tumors with histological results of malignancy of core needle breast biopsies guided by ultrasound performed at a private hospital in São Paulo between January 1, 2019 and December 31, 2020. The mean tumor sizes were compared to identify differences between prepandemic and pandemic periods. The prepandemic period (PRE) was established between January 1, 2019 and March 31, 2020, and the pandemic period (PAN) was considered from April 1 to December 31, 2020. Based on the sample size, this study has the power of 80% to detect a variation of 1 cm in the mean tumor size. Results: A total of 493 core needle biopsies were identified in 443 patients. A total of 103 (20.1%) biopsies in 94 patients were malignant. In the PAN group, 36 cases of cancer were diagnosed (4 cases/month), while the PRE group diagnosed 67 cases (4.5 cases/month). The mean size of PRE tumors was 1.66 cm, while in PAN tumors it was 2.21, showing a difference of 0.55 cm without statistical significance (95%CI 0.12–1.21; p=0.12). When considering staging (TNM – Tumor, Node, Metastases), the stages T1, T2 and T3 had no significant difference among the groups (p=0.12). The age at diagnosis of malignant lesions ranged from 30 to 82 years in the PRE period, and from 34 to 85 years in the PAN period. The mean age of patients with malignant lesions diagnosed in PAN was higher than PRE, without statistical significance (59.2 vs 56.0; p=0.30). Despite the fewer biopsies performed in both periods, (p <0.001), there was no statistical difference in the number of biopsies with malignant results (p=0.18), since there were proportionally more diagnoses of malignancy in the PAN period (28.6% vs. 18.3%; RR 1.14; 95%CI 1.01–1.29; p=0.02). Conclusions: Although the pandemic affected breast cancer screening, no statistically significant increase in the mean size of tumors has been diagnosed in this service so far.

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Queiroz, Andrei Alves de, Debora Garcia y. Narvaiza, Ana Maria Kemp et Gisele Tolaini Gomes Pereira. « LOBULAR BREAST CARCINOMA : THE RISK FOR CONTRALATERAL BREAST IS NOT PERMANENT ». Dans Scientifc papers of XXIII Brazilian Breast Congress - 2021. Mastology, 2021. http://dx.doi.org/10.29289/259453942021v31s1028.

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Introduction: The invasive lobular carcinoma of the breast occurs in approximately 10% of breast cancers. The increased risk for multicentric and bilateral breast tumor is well-documented in the literature, but few data is available regarding the interval for occurrence of contralateral tumors. Objectives: This study aims to analyze the characteristics of the bilaterality of the lobular tumor and time to the occurrence of the bilateral tumor in comparison with non-lobular tumors. Methods: Retrospective, analytical study from the American Surveillance, Epidemiology and End Results Program (SEER) database. Patients with unilateral and bilateral breast cancer (synchronous and metachronous) were filtered from this database in women aged 20 to 75 years from 2000 to 2017. Patients with cancers diagnosed in other organs were excluded. Definitions: Lobular carcinoma at the first diagnosis (LC): patients with lobular breast cancer at the diagnosis of the first neoplasm. Non-lobular carcinoma (NLC): patients with non-lobular carcinoma (ductal or special type) at diagnosis of the first neoplasm. Results: We identified 560,608 patients with breast cancer, 19,792 of which were patients with bilateral tumors (3.5%) and 45,156 (8.0%) lobular tumors at the first diagnosis. Patients with LC had significantly more tumors in both breasts throughout the research period (6.3% vs. 3.3%; OR: 1.97; 95%CI 1.89–2.06, p <0.001). The time for occurrence of contralateral tumor varied widely between patients with lobular and non-lobular tumors. The LC patients presented the diagnosis of contralateral breast tumor much earlier, with 50% of the contralateral tumors diagnosed within one month, and 75% in the first three months, while the NLC patients presented 50% of the contralateral tumors in the first three months and 75% after 54 months of follow-up. Cox’s multivariate analysis shows a higher risk of contralateral breast involvement in LC patients when corrected by age and estrogen receptor expression (RR 2.0; 95%CI 1.93–2.09; p <0.001). This increased risk is not sustained when patients with a tumor in an interval greater than 12 months (RR 1.04; 95%CI 0.96–1.14; p=0.3). Conclusions: Invasive lobular carcinoma is associated with a higher incidence of contralateral disease, but the higher risk occurs in the first year of follow-up. After the one-year period, the incidence of contralateral breast cancer is similar in lobular and non-lobular cancers.

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Tuteja, Geetanjali, S. Unmesh, S. Shree et S. Rudra. « Juvenile granulosa cell tumor ». Dans 16th Annual International Conference RGCON. Thieme Medical and Scientific Publishers Private Ltd., 2016. http://dx.doi.org/10.1055/s-0039-1685332.

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The differential diagnosis for precocious puberty in a young female includes peripheral causes. This case report documents a rare cause of isosexual precocious puberty, a juvenile granulosa cell tumour of the ovary–and a brief literature review. A one year-old baby girl presented with mass abdomen, vaginal discharge and rapid onset of pubertal development. She underwent an exploratory laparotomy for tumour resection. Pathology reported a juvenile granulosa cell tumour of the ovary. Early stage granulosa cell tumor surgically treated has good prognosis. Adjuvant chemotherapy is not indicated in this setting.

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Tuteja, Geetanjali, S. Unmesh, S. Shree et S. Rudra. « Juvenile granulosa cell tumor ». Dans 16th Annual International Conference RGCON. Thieme Medical and Scientific Publishers Private Ltd., 2016. http://dx.doi.org/10.1055/s-0039-1685322.

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The differential diagnosis for precocious puberty in a young female includes peripheral causes. This case report documents a rare cause of isosexual precocious puberty, a juvenile granulosa cell tumour of the ovary–and a brief literature review. A one year-old baby girl presented with mass abdomen, vaginal discharge and rapid onset of pubertal development. She underwent an exploratory laparotomy for tumour resection. Pathology reported a juvenile granulosa cell tumour of the ovary. Early stage granulosa cell tumor surgically treated has good prognosis. Adjuvant chemotherapy is not indicated in this setting.

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Karpova, A. E., L. G. Sozaeva et I. P. Shabalova. « THE CYTOLOGICAL EXAMINATION IN THE DIAGNOSTICS OF NON-TUMOR LESIONS AND OVARIAN TUMORS. » Dans NOVEL TECHNOLOGIES IN MEDICINE, BIOLOGY, PHARMACOLOGY AND ECOLOGY. Institute of information technology, 2022. http://dx.doi.org/10.47501/978-5-6044060-2-1.193-195.

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Correa, Ramon, Qiu Lei, Jonathan Chen, Johnathan Zeng, Jennifer Yu et Pallavi Tiwari. « Using "lesion-habitat" radiomics to distinguish radiation necrosis from tumor recurrence on post-treatment MRI in metastatic brain tumors ». Dans Computer-Aided Diagnosis, sous la direction de Horst K. Hahn et Maciej A. Mazurowski. SPIE, 2020. http://dx.doi.org/10.1117/12.2551393.

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Juarez Chambi, Ronald Miguel, Carmen Kut, Jesus Rico-Jimenez, Daniel U. Campos-Delgado, Alfredo Quinones-Hinojosa, Xingde Li et Javier A. Jo. « Detection of brain tumor margins using optical coherence tomography ». Dans Computer-Aided Diagnosis, sous la direction de Kensaku Mori et Nicholas Petrick. SPIE, 2018. http://dx.doi.org/10.1117/12.2293599.

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Nakano, Shota, Hidenobu Suzuki, Yoshiki Kawata, Noboru Niki et Atsushi Ikeda. « Renal tumor analysis using four- phase contrast CT image ». Dans Computer-Aided Diagnosis, sous la direction de Karen Drukker et Maciej A. Mazurowski. SPIE, 2021. http://dx.doi.org/10.1117/12.2582069.

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Nishihira, Kento, Hidenobu Suzuki, Mikio Matsuhiro, Yoshiki Kawata, Yuuki Kobari, Atsushi Ikeda et Noboru Niki. « Renal tumor analysis using multi-phase abdominal CT images ». Dans Computer-Aided Diagnosis, sous la direction de Khan M. Iftekharuddin, Karen Drukker, Maciej A. Mazurowski, Hongbing Lu, Chisako Muramatsu et Ravi K. Samala. SPIE, 2022. http://dx.doi.org/10.1117/12.2611354.

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Maglich, Bogdan C., et Orhan Nalcioglu. « ‘ONCOSENSOR’ for Noninvasive High-Specificity Breast Cancer Diagnosis by Carbogen-Enhanced Neutron Femto-Oximetry ». Dans ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13295.

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Based on the first experiment on Differential Femto Oximetry (Paper 13270), we conducted a computer simulated study of the feasibility of conceptual design for our noninvasive malignancy probe, Oncosensor, to diagnose hypoxia of malignancy M = −0.90, measured by pO2 — which correspond to volume averaged hypoxia M′ = −0.09 — in 1cm, 3 cm and 5 cm DIA tumors embedded in the middle of a 10 cm DIA breast. M′ is further masked by background γ’s from the in vivo tissue by factor x = 4.4–7 for subcutaneous and central tumor, respectively, to apparent M″ = M′/X which, in turn, renders hypoxia non-diagnosable for 1 cm tumors; marginally so for 3 cm ones with specificity S = 75%, and fully diagnosable with S = 95% in 5 cm ones. To diagnose 1–3 cm and smaller tumors, we propose to enhance M″ by a factor of ≈ 3 by replacing air breathing with that of Carbogen (O2 95%, CO2 5%). With carbogen breathing, simulations predict hypoxia detection in 1 cm subcutaneous tumor with S = 68%, and in 3 cm ones with S = 95–99.9%. Carbogen renders possible 2 additional diagnostic tests for redundancy. Significant improvements of the above measurement accuracies are projected. Oncosensor will be tested in vivo with R3230 tumors in Fischer rats at UCI’s Center for Functional Onco-Imaging. Oncosensor requires imaging guidance.

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Rapports d'organisations sur le sujet "Tumor diagnosis"

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Swerdlow, Harold P. A Capillary Instrument for High Speed DNA-Based Tumor Diagnosis. Fort Belvoir, VA : Defense Technical Information Center, septembre 1999. http://dx.doi.org/10.21236/ada382454.

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Keely, Patricia J., et Amy Trentham-Dietz. Tumor Microenvironment and Progression to Invasion after a Diagnosis of Ductal Carcinoma In situ. Fort Belvoir, VA : Defense Technical Information Center, mars 2012. http://dx.doi.org/10.21236/ada561909.

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Trentham-Dietz, Amy, et Patricia J. Keely. Tumor Microenvironment and Progression to Invasion after a Diagnosis of Ductal Carcinoma In Situ. Fort Belvoir, VA : Defense Technical Information Center, mars 2013. http://dx.doi.org/10.21236/ada575955.

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Trentham-Dietz, Amy, et Patricia Keely. Tumor Microenvironment and Progression to Invasion after a Diagnosis of Ductal Carcinoma In Situ. Fort Belvoir, VA : Defense Technical Information Center, novembre 2013. http://dx.doi.org/10.21236/ada592134.

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Trentham-Dietz, Amy, et Patricia J. Keely. Tumor Microenvironment and Progression to Invasion after a Diagnosis of Ductal Carcinoma In Situ. Fort Belvoir, VA : Defense Technical Information Center, mars 2012. http://dx.doi.org/10.21236/ada560550.

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Leonard, Talayna, Robert Lemme, Cati Kral, Briana Santiago, Chris Elberts, Stephanie Dewald, Patrick McGonagill et al. High-Percentage of Early Resectable Pancreatic Ductal Adenocarcinoma is Unidentified on Abdominal CT Obtained for Unrelated Diagnosis. Science Repository, décembre 2021. http://dx.doi.org/10.31487/j.aco.2021.02.03.

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Objective: Pancreatic ductal adenocarcinoma (PDAC) has the best survival when detected early with 5-year survival near 40% for small, resectable PDAC. We evaluate the undiagnosed PDAC imaging features on routine CT and their impact on resectability. Methods: 76 of the screened 134 CTs from 1/1/2012 to 12/31/2018 using our tumor registry were obtained prior to PDAC diagnosis for other indications at least one month before presentation. Each cross-sectional study was reviewed for features of early PDAC: pancreatic mass, pancreatic ductal dilatation, perivascular/peripancreatic soft-tissue infiltration, omental lesions/ascites, and lymphadenopathy. When such features were detectible by the reviewing radiologists, the original CT readings were classified as concordant/discrepant. Descriptive statistics are reported for discrepant reads, tumor resectability, and tumor size. Results: Of the 76 cases from 46 unique subjects (30 male/16 female), 25 CTs (33%) had undetected PDAC imaging features: masses (15/19 unreported), ductal dilatation (16/20 unreported), and peripancreatic/perivascular soft-tissue infiltration (20/36 unreported). 63% of early PDAC features were not identified initially. One year before clinical diagnosis, 75-80% of the PDAC cases were resectable; at < 6 months before clinical diagnosis, only 29% were resectable. Conclusion: Improving early detection of key PDAC features on routine CT examinations can potentially improve patient outcomes.

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Research, Gratis. The New Field of Ferroptosis Research : Ongoing Developments and Future Outlook. Gratis Research, mars 2021. http://dx.doi.org/10.47496/gr.blog.12.

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Although some experiments have found some proteins that play a regulatory role in ferroptosis, it is still expected to find specific markers for the occurrence of ferroptosis, creating new opportunities for tumor diagnosis and therapeutic intervention

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Zhu, Mucheng, Zhenhua Lu, Hao Guo, Xiaoting Gu, Defang Wei et Zhengyi Zhang. Diagnostic Value of Combination of Biomarkers for Malignant Pleural Mesothelioma：Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, octobre 2022. http://dx.doi.org/10.37766/inplasy2022.10.0043.

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Review question / Objective: Tumor biomarkers have become increasingly attractive due to their non-invasive properties and relatively inexpensive nature for early diagnosis of Malignant pleural mesothelioma (MPM) .Many scholars have published studies on DNA and protein as biomarkers for early diagnosis of MPM, which might be a new breakthrough. A new meta-analysis is necessary to compare the accuracy of combination of three kinds of DNA and three kinds of proteins. Condition being studied: XAs the previous studies have a certain controversy about DNA as a biomarker of MPM, we conducted a systematic search using EMBASE, PubMed and Cochrane Library to identify relevant studies from the inception to October 2021. we used QUADAS-2 for Quality Assessment to Diagnostic Accuracy Studies to evaluate the quality of eligible studies. We used Stata 15.0 and Review Manager 5.4 software to perform the meta-analysis to compare the accuracy of combination of three kinds of DNA and three kinds of proteins.

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Jin, Hongyu, et Man Zhang. LR-5 by LI-RADS under contrast enhanced ultrasonography manifests satisfactory diagnostic performance for hepatocellular carcinoma : A systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, octobre 2022. http://dx.doi.org/10.37766/inplasy2022.10.0011.

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Review question / Objective: To evaluate the relative diagnostic sensitivity, specificity, and accuracy of LR-5 under contrast-enhanced ultrasonography (CEUS) LI-RADS system in the differential diagnosis of hepatocellular carcinoma (HCC). Information sources: A comprehensive and thorough search of literature was carried out through internationally acknowledged medical literature resources database, including PubMed/MEDLINE, EMBASE, Ovid, and Web of Science along with regional databases with key research words of (“hepatocellular carcinoma” OR “liver cancer” OR “liver tumor” OR “liver nodule” OR “liver mass” OR “liver lesion”) AND (“contrast-enhanced US” OR “contrast-enhanced ultrasonography” OR “contrast-enhanced ultrasound” OR “CEUS”) AND (“LI-RADS” OR “liver reporting and data system”) for studies published between January 2017 and June 2021. We limited the language used in the literature as English only.

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ZHAO, JIE, LIANHUA YE, WEI WANG, YANTAO YANG, ZHENGHAI SHEN et SUNYIN RAO. Surgical Prognostic Factors of Second Primary Lung Cancer : A Systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, novembre 2022. http://dx.doi.org/10.37766/inplasy2022.11.0047.

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Review question / Objective: The objective of this study was to explore the effects of different surgical strategies and potential prognostic factors on the prognosis of patients with SPLC through a systematic review and meta-analysis.Prognostic factors included surgical approach, type of SPLC(Synchronous and metachronous),histology,disease-free interval (DFI),tumor size,CT morphology, lymph node metastasis status, smoking status, gender. Condition being studied: With the development of imaging technology and better survival after primary lung cancer, the detection rate of second primary lung cancer (SPLC) has been increasing. At present, the staging and treatment of the second primary lung cancer are still controversial. Although surgery is widely accepted as the main treatment method, there is no unified diagnostic criteria and diagnosis and treatment strategy. The objective of this study was to explore the effects of different surgical strategies and potential prognostic factors on the prognosis of patients with SPLC through a systematic review and meta-analysis.

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