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Journal articles on the topic 'CALVARIUM'

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Author: Grafiati

Published: 9 March 2023

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1

Anavi, Yakir, Gal Avishai, Shlomo Calderon, and Dror M. Allon. "Bone Remodeling in Onlay Beta-Tricalcium Phosphate and Coral Grafts to Rat Calvaria: Microcomputerized Tomography Analysis." Journal of Oral Implantology 37, no. 4 (August 1, 2011): 379–86. http://dx.doi.org/10.1563/aaid-joi-d-09-00128.1.

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Abstract This study was conducted to establish the efficiency of microcomputerized tomography (micro-CT) in detection of trabecular bone remodeling of onlay grafts in a rodent calvaria model, and to compare bone remodeling after onlay grafts with beta-tricalcium phosphate (TCP) or coral calcium carbonate. Ten rats received calvarial onlay blocks—5 with TCP and 5 with coral calcium carbonate. The grafts were fixed with a titanium miniplate screw and were covered with a collagen resorbable membrane. Three months after surgery, the calvaria were segmented, and a serial 3-dimensional micro-CT scan of the calvarium and grafted bone block at 16-micrometer resolution was performed. Image analysis software was used to calculate the percentage of newly formed bone from the total block size. Newly formed bone was present adjacent to the calvarium and screw in all specimens. The mean area of newly formed bone of the total block size ranged from 34.67%–38.34% in the TCP blocks, and from 32.41%–34.72% in the coral blocks. In the TCP blocks, bone remodeling was found to be slightly higher than in the coral blocks. Micro-CT appears to be a precise, reproducible, specimen-nondestructive method of analysis of bone formation in onlay block grafts to rat calvaria.

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2

Ravi, N., Wang Xiao Yi, Li Yu, Huang Jian Ping, and D. Hao. "Primary extradural meningioma arising from the calvarium." South African Journal of Radiology 17, no. 2 (June 11, 2013): 70–71. http://dx.doi.org/10.4102/sajr.v17i2.249.

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Meningiomas are the most common intracranial tumours. Meningiomas arising at other locations are termed primary extradural meningiomas (EDM) and are rare. Here we report a case of EDM arising from the calvarium – a primary calvarial meningioma (PCM).

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3

Gomez, Rodney. "Calvarium." Pleiades: Literature in Context 37, no. 1 (2017): 1–2. http://dx.doi.org/10.1353/plc.2017.0001.

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4

Dussaux, Alice, Eymeric Gomes, Murielle Hurion, Elise Rattez, and Vincent Mayousse. "Cerebral meningioma associated with extensive calvarium osteolysis and presumed intratumoral carcinoma metastasis in a cat." Journal of Feline Medicine and Surgery Open Reports 8, no. 2 (July 2022): 205511692211228. http://dx.doi.org/10.1177/20551169221122849.

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Case summary A 10-year-old male neutered domestic shorthair cat presented with a 3-month history of weight loss, dysorexia and lethargy. Neurological examination revealed decreased mentation, absent menace response bilaterally and proprioceptive deficits affecting all four limbs; these findings were consistent with a forebrain disorder. Brain CT revealed an extensive asymmetric permeative osteolysis destroying two-thirds of the circumference of the calvarium and involving the right frontal, parietal, temporal and occipital bones, as well as the left parietal bone. This extensive bone lysis was associated with a large ‘plaque-like’ extra-axial subdural/pachymeningeal lesion extending within the soft tissues surrounding the calvarium. The cat was humanely euthanased. Post-mortem MRI was performed, which revealed a T2-weighted (T2W) hypointense subdural lesion and a T2W hyperintense circumferential extracranial lesion lining the right calvarium and left parietal bone. Histopathological analysis on a post-mortem sample of the lesion revealed a fibroblastic subtype of meningioma. Epithelial neoplastic cells were observed scattered through the meningioma, calvarium and surrounding muscular tissues, corresponding with presumed metastatic carcinoma. Relevance and novel information To our knowledge, this is the first report of an intracranial meningioma associated with such an extensive and diffuse calvarial osteolysis in veterinary medicine. This is also the first description of presumed metastatic inclusions (adenocarcinoma in this case) inside an intracranial feline meningioma, which is a rare phenomenon known as tumour-to-tumour metastasis in human medicine.

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5

Bourekas, Eric C., and Charles F. Lanzieri. "The calvarium." Seminars in Ultrasound, CT and MRI 15, no. 6 (December 1994): 424–53. http://dx.doi.org/10.1016/s0887-2171(05)80016-2.

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6

Baser, Brajendra, Rekha Shahani, Shalini Khanna, and D. S. Grewal. "Calvarial bone grafts for augmentation rhinoplasty." Journal of Laryngology & Otology 105, no. 12 (December 1991): 1018–20. http://dx.doi.org/10.1017/s0022215100118109.

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AbstractA large variety of graft materials have been used for augmentation rhinoplasty. To date there has been no graft material which can be regarded as completely satisfactory. The modern trend is to prefer autologous material to new biological material. The membranous bones of the calvarium are extremely suitable for augmenting moderate to severe saddle nose deformities. Calvarial bone grafts can be harvested easily, with minimum donor site morbidity and disfigurement. Our experience with calvarial bone grafts for augmentation rhinoplasty is presented.

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7

Cheng, Tao, Yaochao Zhao, Bin Li, Mengqi Cheng, Jiaxing Wang, and Xianlong Zhang. "Curcumin Attenuation of Wear Particle-Induced Osteolysis via RANKL Signaling Pathway Suppression in Mouse Calvarial Model." Mediators of Inflammation 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/5784374.

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Wear particle-induced chronic inflammation and osteoclastogenesis are two critical factors in the osteolytic process. Curcumin (CUR) is an active compound of the medicinal herb Curcuma longa and has anti-inflammatory and antiosteoclastogenic properties. Our study tested the hypothesis that CUR might attenuate polymethylmethacrylate- (PMMA-) induced inflammatory osteolysis using mouse calvaria osteolysis model in vivo and in vitro. The mice were divided into four groups: phosphate-buffered saline group, CUR, PMMA, and PMMA + CUR groups. Three days before PMMA particle implantation, the mice were intraperitoneally injected with CUR (25 mg/kg/day). Ten days after the operation, the mouse calvaria was harvested for microcomputed tomography, histomorphometry, and molecular biology analysis. As expected, CUR markedly reduced the secretion of tumor necrosis factor-α, interleukin- (IL-) 1β, and IL-6 in the calvarial organ culture. Moreover, CUR suppressed osteoclastogenesis and decreased bone resorption in vivo compared with PMMA-stimulated calvaria. Furthermore, CUR downregulated the osteoclast-specific gene expression and reversed the receptor activator of nuclear factor kappa-B ligand (RANKL)/osteoprotegerin messenger RNA and protein ratio in PMMA particle-stimulated mice. These results suggest that CUR attenuated PMMA particle-induced inflammatory osteolysis by suppressing the RANKL signaling pathway in the murine calvarium, which could be a candidate compound to prevent and treat AL.

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8

Suffee, Tabrez, Mohamed Derder, Julien Quilichini, Edouard Dezamis, and Laurent Lantieri. "Calvarial metastasis of renal cell carcinoma." BMJ Supportive & Palliative Care 8, no. 4 (January 31, 2017): 436–38. http://dx.doi.org/10.1136/bmjspcare-2016-001216.

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The calvarium is an extremely unusual site of metastasis of renal cell carcinoma. We report a 62-year-old man who was enrolled for palliative medical management for an exophytic calvarial metastasis. His quality of life was greatly compromised with everyday local care and bandages due to recurrent events of infection and bleeding, limiting his social life. Surgical palliative surgery was carried out to improve the patient's quality of life. After tumour resection, the resultant defects of the calvarium and the scalp were covered by a muscular latissimus dorsi free flap and a fascia lata graft as dural substitute. There was no evidence of local recurrence or distant metastasis during the 3 years follow-up. Consequently, resection of solitary metastasis in the early stage is the treatment of choice with a chance to cure the metastasis and avoid associated morbidity that may occur if the lesion is left untreated.

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9

Alli, Adam, Philip Johnson, and Alan Reeves. "Imaging Characteristics of Occipital Bone Osteoblastoma." Case Reports in Radiology 2013 (2013): 1–3. http://dx.doi.org/10.1155/2013/930623.

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Osteoblastoma is a rare benign tumor of the calvarium. We present the case of a 20-year-old female with occipital osteoblastoma and discussion of imaging modalities of calvarial osteoblastoma. To our knowledge, this is the ninth reported case of occipital osteoblastoma. Imaging characterization of osteoblastoma may vary. Plain radiograph, CT, MRI, and CT angiography establish osteoblastoma characterization and vascular supply prior to surgical resection.

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10

Woods, Glynn, Nicolas Israeliantz Gunz, Ian Handel, Tiziana Liuti, Richard J. Mellanby, and Tobias Schwarz. "Computed Tomography Osteodensitometry for Assessment of Bone Mineral Density of the Canine Head—Preliminary Results." Animals 11, no. 5 (May 14, 2021): 1413. http://dx.doi.org/10.3390/ani11051413.

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Despite bone mineral density (BMD) being regularly measured in human patients, BMD studies in clinical cohorts of dogs is lacking. In order to facilitate BMD assessment and in turn better identify dogs suffering from metabolic bone disease, rapid, easy and precise computed tomography (qCT) techniques are required. In this study we aimed to assess the utility of quantitative computed tomography (qCT) bone mineral density (BMD) measurement of the canine calvarium using a semiautomated osteodensitometry software and define host factors associated with canine bone mineral density in a skeletally healthy population. Calvarial qCT at the level of the temporomandibular joints was performed on 323 dogs using a dedicated osteodensitometry calibration phantom during a clinically indicated head computed tomography (CT). Calvarial BMD was analyzed using a dedicated semiautomatic osteodensitometry software for contouring of the calvarial lamellar bone margins and BMD calculation. The mean duration of the calvarial qCT scanning was 64.6 s, and the mean duration of BMD analysis was 34 s, with a mean of two manual adjustments required for the bone margin tracing. The median BMD of all dogs in our study was 659 mg Calcium hydroxyapatite/mL. There was a negative linear correlation between BMD and body weight, but no correlation with age, sex or neutered status. Canine BMD assessment using qCT of the calvarium is a practical and fast technique that can be added to a clinical CT examination with minimal extra time requirements. Canine BMD host-dependent factors exhibit different relationships from that of humans; however, further investigation is warranted.

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11

Weber, R. S., D. B. Kearns, and R. J. H. Smith. "Split Calvarium Cranioplasty." Archives of Otolaryngology - Head and Neck Surgery 113, no. 1 (January 1, 1987): 84–89. http://dx.doi.org/10.1001/archotol.1987.01860010088022.

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12

Farzana, Fowzia, Bashir A. Shah, Shaheen Shadad, Peerzada Zia ul Haq, Arif Sarmast, and Zulfiqar Ali. "Computed tomographic scanning measurement of skull bone thickness: a single center study." International Journal of Research in Medical Sciences 6, no. 3 (February 22, 2018): 913. http://dx.doi.org/10.18203/2320-6012.ijrms20180614.

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Background: Computerized tomography scan (CT scan) can be useful for the measuring the calvarial thickness in human beings. This could help in identifying the racial and the gender variations in calvarial thickness in a population. The data obtained about calvarial thickness study in human population may be useful for researchers, anatomists, anthropologists, surgeons and manufacturers of surgical screws.Methods: This was an observational study carried out on 104 subjects, with a normal computerized tomography CT scan of the head. Any subject with a skull fractures or an underlying intracranial lesion were excluded from study. A total of 52 males and 52 females who presented in the radiology department for CT head were studied in a consecutive manner. The thickness of skull bone was measured on console (Somatom, Siemens 16 slice).Results: Our study population consisted of 52 male and 52 female subjects. The mean age for males was 48.03 (Range 18-70) years and while as the mean age of females was 47.37 (Range 18-73) years. We did not find any difference in the thickness of the frontal bone at upper third, middle third and lower third between the two sexes. However, the posterior third parietal bone, the anterior and middle third occipital bone was significantly thicker in females when compared to males.Conclusions: Our study suggests that the anterior third of the parietal bone has a more calvarial thickness on the right side than on the left side in both males and females. However, the female calvarium has a significantly thicker calvarium at the posterior third parietal; anterior and middle third occipital bones when compared to male counterparts showing a sexual dimorphism in our study population.

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13

Ambalavanan, Jayachidambaram, Monica Peravali, and David J. Perry. "Rare case of hepatocellular carcinoma metastasising to the pituitary and cavernous sinus causing panhypopituitarism and bilateral ophthalmoplegia." BMJ Case Reports 13, no. 10 (October 2020): e236377. http://dx.doi.org/10.1136/bcr-2020-236377.

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Pituitary metastases, especially from a primary hepatocellular carcinoma (HCC), are rare. Review of the literature revealed only few cases reporting pituitary metastases complicated by panhypopituitarism from HCC. Calvarial metastases from HCC are even more rare. Here, we present a unique case of primary HCC with metastases to both the calvarium and the pituitary causing panhypopituitarism and bilateral ophthalmoplegia, respectively. To our knowledge, this is the first reported case of two unique and rare complications from metastatic HCC.

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14

Zhou, Minerva H., Gavin P. Dunn, Joshua W. Osbun, DeWitte T. Cross, Christopher J. Moran, Ralph G. Dacey, and Akash P. Kansagra. "Direct puncture Onyx embolization of a large calvarial metastasis with intracranial extension: Case report." Interventional Neuroradiology 24, no. 2 (November 9, 2017): 220–24. http://dx.doi.org/10.1177/1591019917740353.

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We report a case of renal cell carcinoma (RCC) metastasis to the calvarium and describe a strategy for percutaneous embolization of hypervascular calvarial tumors with intracranial extension. An elderly patient with history of RCC presented with left-sided weakness. Imaging studies showed a large right frontoparietal calvarial mass with intra- and extracranial extension. The tumor was devascularized by direct puncture tumor embolization using Onyx 18, allowing subsequent operative resection without significant blood loss or the need for flap reconstruction of the scalp. Compared to more common endovascular approaches, direct-needle puncture embolization of transcalvarial masses may offer lower risk of injury to scalp vessels and underlying brain parenchyma.

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15

Yoon, Sun Jung, Ki Suk Park, Bang Sil Choi, Gil Son Khang, Moon Suk Kim, John M. Rhee, and Hai Bang Lee. "Effect of DBP/PLGA Hybrid Scaffold on Angiogenesis during the Repair of Calvarial Bone Defect." Key Engineering Materials 342-343 (July 2007): 161–64. http://dx.doi.org/10.4028/www.scientific.net/kem.342-343.161.

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This study was designed to investigate the influence of demineralized bone particles (DBP)/PLGA hybrid scaffold on angiogenesis and osteogenesis in a calvarial defect model. DBP/PLGA scaffolds were manufactured by solvent casting/salt leaching method, and each scaffold contained 0, 10, 20, 40, and 80 wt% DBP of PLGA, respectively. A total of 34 rats were operated and bicortical holes were placed on their calvaria. The defects were filled with different ratio DBP/PLGA scaffolds. After 3, 7, 14, and 28 days, specimens were taken and, histologic, immunohistologic and RT-PCR analyses were carried out concerning number of vessels and density of regenerated bone, and angiogenic activation. On days 7, in all experimental groups, bone formation occurred in a direction from defected margin of calvarium to center of implanted scaffold and new vessel formation took place in front of the osteogenic regeneration front. We found that the 20 and 40 wt% DBP/PLGA scaffold was superior in its ability to regenerate new bone, induced more intensive formation of microvasculature and expressed in a higher level of osteocalcin mRNA than other groups.

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16

Suss, R. A. "More data on calvarium." American Journal of Roentgenology 162, no. 2 (February 1994): 464–65. http://dx.doi.org/10.2214/ajr.162.2.8310951.

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17

Carter, Ranjana M. S., and Philip Anslow. "Imaging of the Calvarium." Seminars in Ultrasound, CT and MRI 30, no. 6 (December 2009): 465–91. http://dx.doi.org/10.1053/j.sult.2009.08.004.

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18

Ferré, J. C., A. Y. Le Cloarec, C. Chevalier, J. G. Barbin, and J. Y. Barbin. "Biomechanics of the calvarium." Surgical and Radiologic Anatomy 10, no. 1 (April 1988): 29–36. http://dx.doi.org/10.1007/bf02094068.

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19

Bhattarai, Manoj. "Radiological Mapping Of Nepalese Calvaria." Journal of Nobel Medical College 2, no. 1 (March 3, 2013): 31–35. http://dx.doi.org/10.3126/jonmc.v2i1.7670.

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Introduction Skull has cranial vault and base. The cranial vault is called as calvarium which roofs the cranial cavity (brain box).Cranial vault consists of frontal, parietal and occipital bones. Total thickness of calvarial bones includes outer table, diploe and inner table. Diploe is made up of spongy bone whereas outer and inner table made up of compact bone. Objective To measure the thickness of Nepalese calvarial bones i.e. Frontal, Parietal and Occipital. Methods It is a hospital base cross-sectional study. CT records of one hundred and fifty adult people were studied. Nine various points on frontal bone, seven on parietal and six on occipital were located and their thickness were measured bilaterally with help of CT scan. Results The present study showed that Mean thickness+_SD of frontal bone were 6.1+_1.8mm; parietal 4.6+_2.2 and occipital 9.5+_3.4. The study also showed that frontal bone had 2.4+_0.8 mm thick outer table; 1.4+_0.6mm inner table and 3.5+_1.3mm diploe. Similarly parietal bone had 1.9+_0.6 mm thick outer table; 1.1+_0.4mm inner table and 0.8+_0.5mm diploe. The occipital bone had 3.5+_1.5 mm thick outer table; 2.2+_0.8mm inner table and 4.3+_1.8mm diploe. Similarly this present study also calculated the mean thickness+_SD of outer table in the calvarium as 2.7+_1.3mm and that of inner table 1.5+_0.9 mm. Thus it concluded that outer table was thicker than inner table. Journal of Nobel Medical College Vol. 2, No.1 Issue 3 Nov.-April 2013 Page 31-35 DOI: http://dx.doi.org/10.3126/jonmc.v2i1.7670

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20

Arienta, Cesare, Manuela Caroli, Laura Ceretti, and Roberto Villani. "Solitary Plasmacytoma of the Calvarium: Two Cases Treated by Operation Alone." Neurosurgery 21, no. 4 (October 1, 1987): 560–63. http://dx.doi.org/10.1227/00006123-198710000-00022.

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Abstract Two cases of solitary plasmacytoma of the calvarium operated on with radical removal are reported. The two patients were not submitted to postoperative radiotherapy, unlike other cases reported in the literature. The authors stress that soiltary plasmacytoma of the calvarium may have a good prognosis if radically removed, and in these cases radiotherapy is not necessary. (Neurosurgery 21:560-563, 1987)

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21

Tasdemir, Bekir, Zeki Dostbil, Ali Inal, Kemal Unal, Sule Yildirim, and F. Selcuk Simsek. "Evaluation of Clinical Contributions Provided by Addition of the Brain, Calvarium, and Scalp to the Limited Whole Body Imaging Area in FDG-PET/CT Tumor Imaging." BioMed Research International 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/129683.

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Purpose.The aim of this study was to detect additional findings in whole body FDG-PET/CT scan including the brain, calvarium, and scalp (compared to starting from the base of the skull) in cancer patients and to determine contributions of these results to tumor staging and treatment protocols.Materials and Methods.We noted whether the findings related to the brain, calvarium, and scalp in 1359 patients had a potential to modify staging of the disease, chemotherapy protocol, radiotherapy protocol, and surgical management. We identified rates of metastatic findings on the brain, calvarium, and scalp according to the tumor types on FDG-PET/CT scanning.Results.We found FDG-PET/CT findings for malignancy above the base of the skull in 42 patients (3.1%), one of whom was a patient with an unknown primary tumor. Twenty-two of the metastatic findings were in the brain, 16 were in the calvarium, and two were in the scalp.Conclusion.This study has demonstrated that addition of the brain to the limited whole body FDG-PET/CT scanning may provide important contributions to the patient’s clinical management especially in patients with lung cancer, bladder cancer, malignant melanoma, breast cancer, stomach cancer, and unknown primary tumor.

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22

Dacke, C. G., and A. J. Shaw. "Studies of the rapid effects of parathyroid hormone and prostaglandins on 45Ca uptake into chick and rat bone in vivo." Journal of Endocrinology 115, no. 3 (December 1987): 369–77. http://dx.doi.org/10.1677/joe.0.1150369.

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ABSTRACT The rapid effects of parathyroid hormones and a variety of prostaglandins on net uptake of 45Ca into the skeleton have been investigated in chicks and, in a limited parallel study, in immature rats. Intravenous injection of bovine (b) parathyroid hormone(1–34) bPTH(1–34)) or 16,16-dimethyl prostaglandin E2 (16,16-dimethyl PGE2) in a 45Ca-labelled vehicle, combined with subsequent microwave fixation of tissue isotope levels, resulted in rapid (3–15 min) net inhibition of 45Ca uptake into endochondral bone (femur) in chicks (12 days old) and rats (4 weeks old). Use of 125I-labelled albumin and [14C]mannitol indicated that these responses were not a reflection of gross changes in tissue vascular or extracellular space. In rats, bPTH(1–84) also caused significant net inhibition of 45Ca uptake into femur at 10 min. Both bPTH(1–34) and 16,16-dimethyl PGE2 produced generally smaller decreases in 45Ca uptake into chick dermal bone (calvarium) at 3–15 min. In rat calvarium, however, these agents stimulated net uptake of 45Ca at these times. When microwave fixation was omitted, inhibitory responses were reduced or disappeared, while the stimulatory response in rat calvarium was enhanced. Responses to natural prostaglandins (PGE1, PGE2, PGF2α and PGI2) in chicks at 3 min were similar but less marked than those to 16,16-dimethyl PGE2; 45Ca uptake into femur and, to a lesser extent in calvarium, being inhibited. In rats, PGE1, PGE2 and PGF2α showed a tendency to decrease 45Ca uptake into femur while PGE1 and PGE2 both increased 45Ca uptake into calvarium. J. Endocr. (1987) 115, 369–377

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23

Wojak, Joan C., and Raj Murali. "Primary Neuroendocrine (Merkel Cell) Carcinoma Presenting in the Calvarium: Case Report." Neurosurgery 26, no. 1 (January 1, 1990): 137–39. http://dx.doi.org/10.1227/00006123-199001000-00021.

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Abstract A case of a primary neuroendocrine carcinoma arising in the calvarium and involving the bone, dura, and underlying brain is presented. The histopathology and immunohistochemical staining characteristics of tumor were consistent with those of Merkel cell tumor. The natural history and histopathology of this tumor are discussed, along with the possible explanation for the origin of this tumor in the calvarium. (Neurosurgery 26:137-139, 1990)

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24

Arienta, C., M. Caroli, L. Ceretti, and R. Villani. "Solitary plasmacytoma of the calvarium." Neurosurgery 21, no. 4 (October 1987): 560???3. http://dx.doi.org/10.1097/00006123-198710000-00022.

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25

Lin, Jiann-Her, En-Yuan Lin, and Ming-Ying Liu. "Double aggressive osteoblastomas of calvarium." British Journal of Neurosurgery 21, no. 6 (January 2007): 626–28. http://dx.doi.org/10.1080/02688690701593587.

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26

Velázquez Vega, José E., and Andrew E. Rosenberg. "Microcystic Meningioma of the Calvarium." American Journal of Surgical Pathology 39, no. 4 (April 2015): 505–11. http://dx.doi.org/10.1097/pas.0000000000000347.

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27

Bilge, T., S. Barut, S. Bilge, Y. Aydin, F. Ozveren, and C. Alatli. "Solitary plasmacytoma of the calvarium." Zentralblatt für Neurochirurgie 61, no. 01 (December 31, 2000): 26–30. http://dx.doi.org/10.1055/s-2000-8269.

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28

Park, Hun K., Manuel Dujovny, Celso Agner, and Fernando G. Diaz. "Biomechanical properties of calvarium prosthesis." Neurological Research 23, no. 2-3 (March 2001): 267–76. http://dx.doi.org/10.1179/016164101101198424.

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29

Simoni, Paolo, Jennifer Stulko, Selma Ben Mustapha, Laurent Schoysman, Elettra Bianchi, Nadia Withofs, Tudor Racaru, Jo Caers, and Victoria Alvarez-Miezentseva. "Bone mass of the calvarium." Skeletal Radiology 42, no. 8 (December 19, 2012): 1185–87. http://dx.doi.org/10.1007/s00256-012-1547-6.

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30

Simoni, Paolo, Jennifer Stulko, Selma Ben Mustapha, Laurent Schoysman, Elettra Bianchi, Nadia Withofs, Tudor Racaru, Jo Caers, and Victoria Alvarez-Miezentseva. "Bone mass of the calvarium." Skeletal Radiology 42, no. 8 (November 30, 2012): 1157–59. http://dx.doi.org/10.1007/s00256-012-1548-5.

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31

Horiuchi, Tetsuyoshi, Takashi Unoki, and Akira Yokoh. "Desmoplastic fibroma of the calvarium." Journal of Clinical Neuroscience 5, no. 1 (January 1998): 102–5. http://dx.doi.org/10.1016/s0967-5868(98)90216-8.

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32

Eeckhout, Y., J. M. Delaissé, and G. Vaes. "Direct extraction and assay of bone tissue collagenase and its relation to parathyroid-hormone-induced bone resorption." Biochemical Journal 239, no. 3 (November 1, 1986): 793–96. http://dx.doi.org/10.1042/bj2390793.

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A method has been developed for the quantitative extraction of collagenase from as little as one 19-day-fetal-mouse calvarium. About 20-40 munits of collagenase are extracted per mg of tissue, all in a latent form that, after proper activation, shows the typical properties of mammalian collagenase. Culturing the calvaria for 2 days with parathyroid hormone (PTH) increases their procollagenase content up to 3-fold and induces bone resorption. Both PTH effects are prevented by cycloheximide, but not by indomethacin. Calcitonin inhibits resorption without affecting the PTH-induced procollagenase synthesis. The role of this synthesis is discussed in relation to the mechanisms of bone resorption.

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33

Sarigul, Buse, Ece Uysal, İdris Avci, Halil Peker, and Suat Celik. "Giant Calvarial Ewing's Sarcoma: A Case Report." Journal of Neurological Surgery Reports 79, no. 04 (October 2018): e79-e82. http://dx.doi.org/10.1055/s-0038-1673626.

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AbstractEwing's sarcoma (EWS) is the second most common primary bone tumor seen in children and adolescents, first being osteosarcoma. Skull lesions are seen in 6 to 9% of cases. The tumor tends to reside most frequently on frontal and parietal bones. In the literature, majority of papers on calvarial EWS present cases with intracranial involvement; extracranial extension is reported in only eight cases. The case that we are presenting in this report is a 23-year-old male patient with multiple infiltrations in femur, costal bones, and calvarium which had been diagnosed radiologically and histopathologically as EWS. The calvarial metastasis had reached a very huge size with dimensions of approximately 7.5 × 7.5 × 9.5 cm and was successfully excised totally. Twelve months of follow-up revealed no recurrence in the surgical site showing that total removal of giant cranial EWS may improve morbidity of these patients.

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Pesce, Alessandro, Daniele Armocida, Francesco Fiorentino, Silvia Ciarlo, Biagia La Pira, Maurizio Salvati, Alessandro Frati, Angelo Pompucci, and Mauro Palmieri. "Full-Thickness Craniodural Metastasis with Leptomeningeal Infiltration of Salivary Origin: A Radiological Lesson and a Technical Remark." Tomography 8, no. 5 (August 27, 2022): 2164–70. http://dx.doi.org/10.3390/tomography8050181.

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Calvarial metastases are a relatively rare entity, with an overall incidence of 3–4%. Among these cases, metastases arising from salivary gland cancers are even rarer; in fact, large studies regarding salivary gland tumors showed that brain metastases are observed in 0.8% of the cases. Generally, bone metastases have been described in proximity to primary tumors, while bloodstream-disseminated lesions are often located inside the brain parenchyma. During every surgical step, traction on lower-lying infiltrated tissues must be avoided in order to successfully remove the lesion. This case report presents the first ever case of a 67-year-old woman affected by submandibular gland undifferentiated adenocarcinoma metastasis with a full-thickness involvement of the calvarium, pachy- and leptomeninges.

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Elford, James, Andrew T. Parry, and Sebastien Behr. "Osteopetrosis in a young adult dog causing multiple cranial nerve deficits." Veterinary Record Case Reports 7, no. 3 (August 2019): e000856. http://dx.doi.org/10.1136/vetreccr-2019-000856.

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A two-year-old Cocker Spaniel was presented for investigation of lethargy and cranial nerve deficits. Neurological examination revealed multiple cranial nerves deficits and haematology and serum biochemistry revealed mild anaemia. MRI of the brain revealed caudoventral cerebellar herniation and cervical syringohydromyelia, while both MRI and CT revealed hyperostosis of the calvarium and narrowing of the calvarial foramina. Radiographs demonstrated marked osteosclerosis of the skull, vertebrae, sternebrae, ribs and long bones of the limbs. Further biochemistry revealed total calcium, ionised calcium and vitamin D levels to be unremarkable. This led to a diagnosis of osteopetrosis. Osteopetrosis is an extremely rare condition in dogs, with only sporadic cases being reported previously in the literature.

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Mondal, A., N. Rodriguez-Florez, JL O’Hara, J. Ong, NuO Jeelani, DJ Dunaway, and G. James. "WPI-13 Lack of association of cranial lacunae with intracranial hypertension in children with crouzon syndrome and apert syndrome: a 3D morphometric quantitative analysis." Journal of Neurology, Neurosurgery & Psychiatry 90, no. 3 (February 14, 2019): e5.1-e5. http://dx.doi.org/10.1136/jnnp-2019-abn.14.

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ObjectivesCranial lacunae on CT is equivalent to the plain X-ray ‘copper beating’ seen in craniosynostosis. Copper beating has not been shown to correlate to intracranial hypertension (IH). However it is a purely quantitative assessment – can qualitative measurement of CT cranial lacunae more accurately predict IH in children with craniosynostosis?DesignRetrospective cohort study.Subjects18 consecutive children with Crouzon and 17 with Apert syndrome were identified.MethodsPatients were divided into IH and non-IH groups defined on an intention to treat basis. 3D software was used to analyse% of calvarial lacunae.ResultsMean age at CT scan was 380 days (range 6–1778). Of the 35 children, 21 required surgery for raised ICP (17 posterior vault expansion 2 ventriculo-peritoneal shunts (VPS), 1 spring-assisted cranioplasty and 1 fronto-orbital advancement) at mean age of 512 days (range 38–1710). Of the 21 children with raised ICP, 15 had lacunae with mean lacuna/calvarium percentage of 3% (0%–28%). Of the 14 non-raised ICP children, 8 had lacunae with mean lacuna/calvarium percentage of 2% (0%–8%). T-test demonstrated no significant difference between the 2 groups. For both groups, parietal bones were most likely to show lacunae (IH 14/21, non-IH 9/14), followed by occipital (IH 8/21, non-IH 3/14), followed by frontal (IH 6/21, non-IH 2/14).ConclusionsResults suggest that cranial lacunae, measured using quantitative 3D methods, do not predict IH, in agreement with evidence from qualitative plain skull radiograph studies.

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Fox, R., E. J. Comerford, A. Newitt, and R. Pettitt. "Bilateral angular carpal deformity in a dog with craniomandibular osteopathy." Veterinary and Comparative Orthopaedics and Traumatology 25, no. 02 (2012): 149–54. http://dx.doi.org/10.3415/vcot-11-02-0022.

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SummaryA four-month-old West Highland White Terrier was presented to the Small Animal Teaching Hospital at the University of Liverpool with the complaint of a bilateral angular carpal deformity. A 20° valgus deformity was present in both thoracic limbs, centred on the distal radial physes. Both distal ulnas were grossly thickened and there was concomitant thickening of the rostral mandible and calvarium. The dog exhibited signs of resentment on palpation of the mandible and signs of pain were elicited on flexion and extension of both elbow joints. No signs of pain were evident on palpation of the ulnas or calvarium. Radiographic images of both ulnas showed marked amorphous periosteal new bone formation. The distal ulnar physes were closed centrally and both elbow joints had humeroulnar subluxation. Radiographic changes to the calvarium and mandibular rami were consistent with a diagnosis of craniomandibular osteopathy. A bilateral ulna ostectomy was performed to correct the angular limb deformity and elbow subluxations. Histology of the ostectomised pieces showed changes consistent with craniomandibular osteopathy.

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Zhang, YueKang, Ji Zhang, Jin Li, and Liu Ling. "Gorham′s disease of the calvarium." Neurology India 58, no. 1 (2010): 144. http://dx.doi.org/10.4103/0028-3886.60412.

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Brabender, Wayne, Joseph Ketcherside, Glenn R. Hodges, Setti Rengachary, and William G. Barnes. "Acremonium kiliense Osteomyelitis of the Calvarium." Neurosurgery 16, no. 4 (April 1, 1985): 554–56. http://dx.doi.org/10.1097/00006123-198504000-00019.

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Abstract A 35-year-old man with osteomyelitis of the calvarium, from which Acremonium kiliense was consistently isolated, was successfully treated with amphotericin-B and ketoconazole in addition to craniectomy. Subsequent acrylic cranioplasty produced a good cosmetic result.

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HAY, ASHLEY, JAMISON E. STRAHAN, ABEL TORRES, and JOHN Y. KIM. "Basal Cell Carcinoma with Calvarium Invasion." Dermatologic Surgery 37, no. 3 (March 2011): 399–401. http://dx.doi.org/10.1111/j.1524-4725.2011.01896.x.

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Brabender, Wayne, Joseph Ketcherside, Glenn R. Hodges, Setti Rengachary, and William G. Barnes. "Acremonium kiliense Osteomyelitis of the Calvarium." Neurosurgery 16, no. 4 (April 1985): 554–56. http://dx.doi.org/10.1227/00006123-198504000-00019.

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Chang, J. H., J. W. Chang, Y. G. Park, T. S. Kim, J. A. Kim, and S. S. Chung. "Simple bone cyst occurring in calvarium." Acta Neurochirurgica 145, no. 10 (October 1, 2003): 927–28. http://dx.doi.org/10.1007/s00701-003-0114-2.

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Srivastava, J. L., G. Biswas, R. P. Narayan, and A. Goel. "Chronically exposed calvarium following electrical burns." Burns 19, no. 2 (April 1993): 138–41. http://dx.doi.org/10.1016/0305-4179(93)90037-9.

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Saleem, Sheena, and Deniz Altinok. "Melanotic neuroectodermal tumor of the calvarium." Pediatric Radiology 40, S1 (June 24, 2010): 159. http://dx.doi.org/10.1007/s00247-010-1747-y.

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45

da Silva Junior, Erasmo Barros, Joseph Franklin Chenisz da Silva, Maurício Coelho Neto, Marcella Santos Cavalcanti, and Ricardo Ramina. "5-aminolevulinic Acid and Surgical Margin Analysis in Calvarial Metastasis with Pericranium or Dural Extension: Technical Note." Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery 39, no. 03 (June 23, 2020): 207–12. http://dx.doi.org/10.1055/s-0040-1710312.

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AbstractMetastasis to the calvarium with direct pericranium or dural infiltration may be treated with radical surgical removal in selected cases. We describe microsurgical resection of calvarial metastases with fluorescence-guided technique using 5-aminolevulinic acid (5-ALA) in two female patients with breast cancer. Fluorescence findings were positive in both cases. Margins in the scalp and dural layer were 5-ALA negative at the end of surgical removal. Intraoperative pathology was performed in all cases to confirm if oncological limits were free of disease. One case was 5-ALA positive in the outer layer of the dura-mater and another in the pericranium. At the end of the removal in both cases, the surgical margins were 5-ALA fluorescence-free. Intraoperative pathology confirmed oncological limits of the resection. 5-aminolevulinic acid fluorescence-guided surgery for calvarial metastases with pericranium and/or dural extension seems to be a safe and reliable method to aid the surgical margins for complete removal, possibly delaying or avoiding adjuvant irradiation for progression control.

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ALEMI, H., A. ASGHARI, G. ABEDI, A. AKBARZADEH, and P. MORTAZAVI. "Effect of a nanocomposite containing ostrich eggshell on calvarium healing in the rabbit: a pathologic study." Journal of the Hellenic Veterinary Medical Society 70, no. 4 (January 27, 2020): 1757. http://dx.doi.org/10.12681/jhvms.22218.

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The aim of the current study was to determine effect of a nanocomposite containing ostrich eggshell (NCOE) on the calvarium healing in the rabbit. Fresh ostrich eggshell was ground (300-500 μm), treated in phosphate-containing solutions and sterilized by gamma irradiation. Fifteen New Zealand white adult male rabbits were used. Four full-thickness skull defects were created in the calvarium. The first defect kept unfilled (control). The second defect was filled with autograft bone. The third defect was filled using NCOE. The fourth defect was filled with mixture of the autograft+NCOE bone. At 30, 60 and 90 days after surgery animals were euthanized and tissue specimens were collected and stained with hematoxylin eosin and trichrome staining method. Microsections were examined toassess the extent and intensity of inflammation, calvarium formation status and foreign body reaction. According to the results, filling defect significantly increased in NCOE-treated rabbits compared to the control group at 30 and 60 days post-surgery (P<0.05). There a statistically significant difference between experimental groups compared to the control group at 30 and 60 days post-surgery (P<0.05) while no statistically significant differences were observed among autograft, NCOE, autograft+NCOE (P>0.05). Also, absorb material significantly decreased in NCOE and autograft+NCOE groups compared to the control group at 60 days post-surgery (P<0.05). The filling defect significantly increased in autograft, NCOE and NCOE+autograft groups compared to the control group at 90 days post-surgery (P<0.05). There was no significant difference on inflammation and absorb material among the groups at 90 days post-surgery (P>0.05). These results suggested NCOE+autograft has improved the rate of calvarium healing in rabbits.

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Shukla, Anju, Devendra Chhabra, Tarun Pandey, and Prashant Singh. "Dural Plasmacytoma Involving Calvarium with Soft Tissue Extension Mimicking Meningioma: A Diagnostic Dilemma." Indian Journal of Neurosurgery 08, no. 01 (March 2019): 053–56. http://dx.doi.org/10.1055/s-0038-1676913.

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AbstractHere, the authors describe a case of 25-year-old man diagnosed with dural plasmacytoma involving calvarium with soft tissue extension. Magnetic resonance imaging (MRI) revealed extra-axial heterogeneously enhancing soft tissue mass lesion in the left parieto-occipital region with a dural tail mimicking meningioma, destroying the left parietal bone, and bulging into the scalp. Mass was excised and histopathologic examination revealed plasmacytoma with amyloid deposition. There is no recurrence after postoperative radiotherapy and 2 years of follow-up, although the future course is still not certain. The clinician should consider alternative diagnosis other than meningioma prior to proceeding to surgery if the dural-based lesion is involving calvarium and soft tissue extension.

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SHIMIZU, Satoru, Koji KONDO, Tomoya YAMAZAKI, Kenji NAKAYAMA, Isao YAMAMOTO, and Kiyotaka FUJII. "Anchoring of Methylmethacrylate Filler to the Calvarium." Neurologia medico-chirurgica 51, no. 2 (2011): 167–69. http://dx.doi.org/10.2176/nmc.51.167.

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Ibric-Cioranu, Vladimir Sorin, and Vlad Petrescu Seceleanu. "Calvarium bone graft in severe maxilla atrophy." ORL.ro 4, no. 41 (2018): 42. http://dx.doi.org/10.26416/orl.41.4.2018.2120.

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Castillo, M., and S. M. Davis. "Epoetin therapy resulting in a thickened calvarium." American Journal of Roentgenology 171, no. 6 (December 1998): 1708. http://dx.doi.org/10.2214/ajr.171.6.9843322.

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