11/128. Ectopic epidural calvarial meningioma.A rare case of ectopic epidural calvarial fibroblastic meningioma is reported in a 31-year-old male. Arising from the inner table of the skull, it produced an intracranial mass which resulted in hemiparesis and Jacksonian epilepsy.- - - - - - - - - - ranking = 1keywords = meningioma (Clic here for more details about this article) |
12/128. Intracranial low-grade chondrosarcoma with hyperostosis of the skull: a case report.We describe a case of intracranial chondrosarcoma in a 46-year-old woman. The preoperative diagnosis was meningioma as plain radiography and computed tomography of the head revealed a tumor with discrete calcifications predominantly in the right frontoparietal region and hyperostosis of the inner table of the skull overlying the tumor. However, the tumor was histologically composed of cartilaginous tissue without meningiomatous differentiation and the final diagnosis was a low-grade chondrosarcoma based on its histological appearance and size, together with the radiologic images. Intracranial chondrosarcoma occurring above the skull base is extremely rare and 19 cases were found in our literature review. Intracranial chondrosarcoma showing hyperostosis of the skull has not been reported in the cases. The discussion includes its differential diagnosis, origin, and clinical behavior.- - - - - - - - - - ranking = 0.4keywords = meningioma (Clic here for more details about this article) |
13/128. Intraosseous meningioma of the posterior fossa--Case report.A 62-year-old male presented with a rare intraosseous meningioma with intradural extension manifesting as frequent vomiting and floating sensation that had persisted for 3 months. neuroimaging detected a mass lesion that was mainly located extradurally in the right posterior fossa with a daughter lesion inside the dura. He underwent surgical excision of the mass lesion. Craniectomy exposed the main lesion of the tumor just beneath the thinned outer table of the skull, and in the extradural space, with the daughter lesion penetrating the dura. Both portions of the tumor were resected. There was no attachment to the adjacent dura mater. Histological examination showed meningotheliomatous meningioma containing scattered bony tissue. This intraosseous meningioma probably originated from the occipital bone with a small intradural extension caused by mechanical compression.- - - - - - - - - - ranking = 1.4keywords = meningioma (Clic here for more details about this article) |
14/128. Primary intraosseous meningioma of orbit and anterior cranial fossa: a case report and literature review.Primary intraosseous meningiomas of the skull base are rare. Extensive involvement of the skull base by the tumour may result rarely in loss of vision. Surgical management requires extensive decompression and reconstruction. A case of primary intraosseous meningioma of orbits and anterior cranial fossa presenting with painless proptosis and loss of vision is presented here and the literature reviewed.- - - - - - - - - - ranking = 1.2443640070518keywords = meningioma, meningiomas (Clic here for more details about this article) |
15/128. Solitary skull metastasis from mucoepidermoid mimicking a parotid tumour.Metastatic parotid tumours in the skull are very rare. An interesting case of a mucoepidermoid parotid tumour metastasizing to the skull vault is described in a patient who had previously been operated for a pituitary adenoma 20 years back with no post operative radiotherapy; however, she required hormonal supplementation therapy. She underwent an operation for a parotid tumour 7 years ago and received postoperative radiotherapy for the parotid tumour away from the site of the skull metastases. No local recurrence of the parotid tumour was noted. The initial diagnosis was that of a solitary intradiploic meningioma. Interesting clinico-radiological findings are presented.- - - - - - - - - - ranking = 0.2keywords = meningioma (Clic here for more details about this article) |
16/128. Drop metastasis from sinonasal undifferentiated carcinoma: clinical implications.STUDY DESIGN: The first reported case of multiple intradural, extramedullary spinal metastasis from sinonasal undifferentiated carcinoma is presented. OBJECTIVES: To elucidate the mechanisms by which metastatic disease invades the spinal axis, and to discuss the possibility of spinal drop metastasis from head and neck tumors that invade the dura. SUMMARY OF BACKGROUND DATA: Sinonasal undifferentiated carcinoma is a rare yet aggressive neoplasm of the upper airways and anterior skull base. This neoplasm is known to invade the cranial vault and brain locally. However, it has not previously been reported to seed the cerebrospinal fluid or result in drop metastasis. Such drop metastasis may result in significant neurologic deficit if not diagnosed and treated in a timely manner. methods: This report is based on a single patient treated by a multidisciplinary team from the departments of neurosurgery, otolaryngology, and radiation oncology at the University of Southern california School of medicine. RESULTS: This patient initially underwent resection and local radiation therapy for sinonasal undifferentiated carcinoma of the anterior skull base. At the time of surgery, the tumor was noted to violate the dura and arachnoid along the subfrontal plane. At 11/2 years after the initial treatment, a bandlike distribution developed at T2 as well as paresthesias and numbness below that level. Imaging of the spine showed an intradural, extramedullary tumor at T2 consistent with a schwannoma or meningioma. The patient underwent a laminectomy and tumor resection, which showed poorly differentiated sinonasal carcinoma. Local radiation therapy was administered, and the patient experienced complete recovery of neurologic function. Bilateral leg pain and weakness developed 14 months later. magnetic resonance imaging of the spine showed a new intradural, extramedullary lesion at T12, remote from the first lesion. This second metastasis was managed with surgical resection and adjuvant radiation therapy. CONCLUSIONS: This is the first reported case of a sinonasal carcinoma leading to intradural extramedullary metastasis. The primary tumor likely seeded the cerebrospinal fluid, thus resulting in drop metastasis. patients with sinonasal undifferentiated carcinoma that invades the dura should be monitored closely for evidence of metastasis before symptoms develop.- - - - - - - - - - ranking = 0.2keywords = meningioma (Clic here for more details about this article) |
17/128. Primary ectopic meningioma.Primary ectopic meningiomas are rare. A case of a 16-year-old male who presented with a large mass in temporofrontal region is reported. X-ray skull showed soft tissue shadow with hyperostosis of frontal and temporal bone. CT scan of brain demonstrated a markedly enhancing lesion and bony hyperostosis with no intracranial component. Total excision of tumour with hyperostotic bone was done. Patient is well without any evidence of recurrence two years after surgery. Relevant literature is reviewed.- - - - - - - - - - ranking = 1.0443640070518keywords = meningioma, meningiomas (Clic here for more details about this article) |
18/128. Surgical management of meningioma en plaque of the sphenoid ridge.BACKGROUND: meningioma en plaque represents a morphological subgroup within the meningiomas defined by a carpet or sheet-like lesion that infiltrates the dura and sometimes invades the bone. Differential diagnosis includes fibrous dysplasia, osteoma, and osteoblastic metastasis. This study was conducted to obtain pathological information on patients with meningioma en plaque and to correlate with the surgical management. methods: A retrospective review of all the adult operative cases at the University Hospital in a seven and a half-year period from July 1, 1990 to December 31, 1997 identified 150 patients who were operated on for intracranial meningiomas. The medical records were reviewed to identify cases of meningioma en plaque. Forty-seven patients had involvement of the sphenoid ridge and 6 of them fulfill the criteria for meningioma en plaque. RESULTS: All 6 patients with meningiomas en plaque were female and had hyperostosis of the sphenoid bone. In 5 of them, the bone was sent for histopathological examination. Four of those had infiltration of the bone by meningioma cells. Proptosis was the most common presentation. Half of the patients presented with visual disturbances that improved after surgery. All patients were operated using a fronto-temporal approach with orbital decompression. CONCLUSION: All the involved bone should be removed to prevent recurrence. In those cases with involvement of the cavernous sinus and/or the orbital apex, a subtotal but extensive removal combined with bony decompression of the cranial nerves at the superior orbital fissure and optic canal frequently produces good functional and cosmetic results.- - - - - - - - - - ranking = 2.3330920211554keywords = meningioma, meningiomas (Clic here for more details about this article) |
19/128. Radionuclide cerebral angiographic evaluation of a diploic extracranial meningioma: case report.A case of a diploic extracranial meningioma whose true vascularity was more significantly defined by radionuclide angiography than by selective contrast angiography is presented. The radionuclide angiogram clearly demonstrated large venous channels draining the tumor.- - - - - - - - - - ranking = 1keywords = meningioma (Clic here for more details about this article) |
20/128. adamantinoma and meningioma occurring synchronously in a patient with breast cancer: a case report.Screening mammography of a woman with no symptoms led to the diagnosis of carcinoma of the breast, an intracranial meningioma, and adamantinoma of the right tibia. This is the first reported case of three synchronous primary tumors of different tissue origins. biopsy is essential for diagnosing or excluding primary tumor(s) in cases of suspected metastases occurring at a limited number of sites.- - - - - - - - - - ranking = 1keywords = meningioma (Clic here for more details about this article) |
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