1/95. Spinal subarachnoid hemorrhage attributable to schwannoma of the cauda equina.BACKGROUND: cauda equina syndrome occurring as a result of spontaneous spinal subarachnoid hemorrhage (SAH) from a spinal tumor is reported to be rare. CASE DESCRIPTION: A 28-year-old woman presented at our clinic with a history of severe back pain for 10 days, progressive paraparesis, and urinary retention. Her physical examination revealed a mass located intradurally at the level of L1-2 and a massive SAH. An L1-L2, laminectomy and a hemilaminectomy from D9 to D12 were performed and the SAH was evacuated and the cord was decompressed. CONCLUSION: At the first year follow-up, her restricted dorsal and plantar flexion continued. Post-gadolinium magnetic resonance imaging revealed no mass.- - - - - - - - - - ranking = 1keywords = subarachnoid (Clic here for more details about this article) |
2/95. Spinal oligodendroglioma with gliomatosis in a child. Case report.The authors present a rare case of oligodendrogliomatosis in a child, which they believe originated from a primary spinal cord tumor. At 2.5 years of age this boy developed poor balance, neck stiffness, and a regression in developmental milestones. A computerized tomography (CT) scan of the head initially revealed ventriculomegaly and multiple cystic cerebellar lesions. In addition, magnetic resonance (MR) imaging revealed a cystic intramedullary lesion involving the cervical spinal cord. A CT scan of the head and an MR image obtained 3 years later demonstrated diffuse small cysts on the surface of the brainstem, cerebellum, medial temporal and inferior frontal cortices, subcortical white matter, and corpus callosum suggestive of leptomeningeal tumor spread. Analysis of pathological specimens obtained at surgery showed neoplastic glial cells with small, uniform nuclei and perinuclear clear zones. The cells appeared to migrate along the subpial space but no tumor cells were present in the subarachnoid space. These findings were compatible with a diagnosis of oligodendrogliomatosis cerebri. Despite having a complicated course, chemotherapy with carboplatin has provided the patient with long-term palliation and a high quality of life. This case may represent the fifth report in the literature of oligodendrogliomatosis occurring in a child but only the third occurring with a spinal primary tumor.- - - - - - - - - - ranking = 0.2keywords = subarachnoid (Clic here for more details about this article) |
3/95. Primary intradural pontocerebellar chordoma metastasizing in the subarachnoid spinal canal.Chordomas that are entirely extraosseous and intradural are rare. Additionally subarachnoid spinal implantation from such a cranial, intradural chordoma has never been reported before. The authors present a case of a widespread primary intradural chordoma in the basal cisterns of a 48-year-old woman which shows seeding of neoplastic cells to the spinal leptomeninges. It is concluded that also in cases of intradural and intracranial chordomas a tumor staging should include the search for spinal subarachnoid metastases.- - - - - - - - - - ranking = 1.2keywords = subarachnoid (Clic here for more details about this article) |
4/95. Infantile arachnoid cyst compressing the sacral nerve root associated with spina bifida and lipoma--case report.A 2-year-old boy presented with a rare sacral arachnoid cyst manifesting as gait disturbance. neuroimaging revealed an intradural cyst in the sacral nerve root sheath associated with spina bifida occulta and a lipoma at the same level. At surgery, the conus medullaris was situated at the L-1 level and not tethered. The highly pressurized arachnoid cyst had exposed the dural sheath of the left S-2 nerve root and compressed the adjacent nerves. An S-2 nerve root pierced through the cyst. There was no communication between the cyst and spinal arachnoid space. We thought the one-way valve mechanism had contributed to the cyst enlargement and the nerve compression. Radical resection of the cyst was not attempted. A cyst-subarachnoid shunt was placed to release the intracystic pressure. Postoperatively, his gait disturbance improved and no deterioration occurred during the 4-year follow up. Both tethered cord syndrome and sacral arachnoid cyst in the nerve root sheath should be considered in pediatric progressive gait disturbance. Cyst-subarachnoid shunt is an alternative method to cyst resection or fenestration to achieve neurological improvement.- - - - - - - - - - ranking = 0.4keywords = subarachnoid (Clic here for more details about this article) |
5/95. rupture of spinal dermoid tumors with spread of fatty droplets in the cerebrospinal fluid pathways.Cranial and spinal MRI was carried out at 0.5 or 1.5 T in five patients with spinal dermoid tumours. Free fatty material was appreciated within the normally communicating cerebrospinal fluid pathways in all five cases and in one case fat droplets were also observed within a dilated central canal of the spinal cord. While dissemination of lipid within the subarachnoid space and ventricles is easily understandable, the presence of lipid droplets within the central canal is more difficult to explain, since the central canal is only potential in the adult. When a dermoid tumor is suspected, we recommend MRI of the entire central nervous system, to detect possible leakage of fat from rupture of a cystic portion of the tumour.- - - - - - - - - - ranking = 0.2keywords = subarachnoid (Clic here for more details about this article) |
6/95. spinal cord ependymoma presenting with acute paraplegia due to tumoral bleeding.Acute paraplegia is a rare presentation for a spinal cord ependymoma Among spinal cord tumors ependymomas are most commonly associated with subarachnoid hemorrhage and there is evidence that some have had intratumoral hemorrhage, but most of these bleedings pass without symptoms. In this report, a case of spinal cord ependymoma debutting with acute neurological deterioration due to tumoral bleeding is presented. We discuss the clinical and neuroradiological findings and review the literature related to this unusual presentation.- - - - - - - - - - ranking = 0.2keywords = subarachnoid (Clic here for more details about this article) |
7/95. Extraneural metastasis of pineal tumor.The case of an eight-year old male with a pineal tumor is reported, in which metastases occurred to extraneural organs. The pineal tumor consisted of portions of benign teratoma, malignant ependymoma and embryonal carcinoma. Only the embryonal carcinoma metastasized. The intracanial and spinal subarachnoid space alos was invaded by disseminated embryonal carcinoma. There have been seven other similar cases reported. All patients were males from five to 34 years of age.- - - - - - - - - - ranking = 0.2keywords = subarachnoid (Clic here for more details about this article) |
8/95. Spinal leptomeningeal metastases of giant cell glioblastoma associated with subarachnoid haemorrhage: case report.A case of subarachnoid haemorrhage (SAH) due to spinal leptomeningeal metastases of a giant cell glioblastoma is described. A 51 year old male presented with a four week history of headache. Neurological examination was normal except for a slight left hemiparesis. Computed tomography (CT) revealed a large cyst with a mural nodule in the right temporal lobe. The tumour was removed followed by 60 Gy of radiation therapy. Thirty-two months later he developed headache and shoulder pain with symptoms of normal pressure hydrocephalus. Head CT showed ventriculomegaly and SAH. magnetic resonance imaging showed spinal leptomeningeal metastases at the C4-5, T12, and L2 levels, but no local recurrence or tumour dissemination in the brain. He died 34 months after surgery. autopsy revealed diffuse SAH over the whole brain and spinal cord, associated with spinal leptomeningeal metastases, but no cerebral aneurysms. Spinal radiotherapy and ventriculoperitoneal shunting could possibly have extended survival in this patient.- - - - - - - - - - ranking = 2.1695502042141keywords = subarachnoid haemorrhage, subarachnoid, haemorrhage (Clic here for more details about this article) |
9/95. Schwannoma of the cervical spine presenting with acute haemorrhage.Acute haemorrhagic presentation of spinal schwannoma is a rare event. A case of cervical spinal schwannoma presenting with spontaneous spinal subdural and intramedullary haemorrhage is described.- - - - - - - - - - ranking = 0.042384547454783keywords = haemorrhage (Clic here for more details about this article) |
10/95. Myxopapillary ependymoma of the conus medullaris with subarachnoid haemorrhage: MRI in two cases.Subarachnoid haemorrhage due to cauda equina tumour is rare. We report two myxopapillary ependymomas of the conus terminalis, presenting with in this way. Rims of low signal were observed at their upper and lower borders, mainly on T2-weighted images. This finding has been described in ependymomas of the cervical region but not, to our knowledge, in myxopapillary ependymomas of the conus terminalis.- - - - - - - - - - ranking = 1.7441170728622keywords = subarachnoid haemorrhage, subarachnoid, haemorrhage (Clic here for more details about this article) |
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