OBJECTIVE This study used the intradural procedural time to assess the overall technical difficulty involved in surgically clipping an unruptured middle cerebral artery (MCA) aneurysm via a pterional or superciliary approach. The clinical and radiological variables affecting the intradural procedural time were investigated, and the intradural procedural time compared between a superciliary keyh...

Intradural extra-arachnoid lumbar disc herniation is a rare disease. Few MRI findings have been reported. We experienced an intradural extra-arachnoid lumbar disc herniation. We reviewed the preoperative MRI findings. Lumbar spine T2-weighted sagittal MRI showed that one line of the ventral dura was divided into two by a disc herniation. We speculated that the two lines comprised the dura and a...

Study Design Case report. Objective Presentation of an unusual case of an elderly patient with massive intradural disk herniation at the L2-L3 level. Methods Clinical and imaging data are presented after obtaining informed consent from the patient. Results A 90-year-old man suffering from sudden-onset neurogenic bladder dysfunction and lower back pain but no further neurologic deficits initiall...

Intradural disc herniation has been reported as a rare type of intervertebral disc herniation, only 32 cases reported. It remains difficult to definitively diagnose the disease before surgery. We reported a 55 year-old female patient complaints of nuchal pain and bilateral arm weakness after a trauma accident. MRI revealed a C3-C4 herniated intervertebral disc (HIVD) with a “hawk-beak sign.” CT...

BACKGROUND Lumbar intervertebral disc herniation and spinal tumor are major pathologies that may cause back pain and radiculopathy. Neurological symptoms resulting from disc herniation and intradural spinal tumor together, however, are very rare. CASE PRESENTATION We report a case of lumbar disc herniation which coexists with intradural schwannoma at the same spinal level in a 67-year-old man...

Capillary hemangiomas involving the neuraxis are very uncommon. In the spinal cord, they are located mainly intradural and extramedullary.1 According to the literature, vascular lesions account for approximately 6%–7% of all intradural spinal tumors, although intramedullary capillary are extremely rare.2 To our knowledge, only four cases in conus medullaris have been previously described since ...

Ependymomas constitute 4-6% of primary central nervous system tumors. Spinal ependymomas are most frequently found in intramedullary region but few cases of intradural extramedullary ependymoma have also been reported. We report a 24-year-old male patient with a suspected case of intradural extramedullary ependymoma. Magnetic resonance images of the lumbar spine depicted an intradural mass from...

Primary intradural extraskeletal Ewing sarcoma is a very rare form of malignant neoplasm. Only few cases have been reported on the literature. Here, we report a case of a 14-year-old boy who had a chief complaint of pain and tingling in the right lower limb. The patient initially seemed to have a giant nerve sheath tumor but was eventually diagnosed with intradural extraskeletal Ewing sarcoma a...

an incidence that ranges from 0.26% to 0.30% of all herniated discs (1). Myelography, computed tomography (CT) and magnetic resonance imaging (MRI) are generally used to diagnose intradural lumbar disc herniation (IDLDH), but there can be some differences according to each case. Several studies have reported of a potential association between intradural disc herniation and gas within the spinal...

Echinococcus granulosus infrequently induces spinal hydatid cysts, and intradural hydatid cysts are extremely rare among these spinal hydatid cysts. We report a 30-year-old man with a history of progressive back pain caused by a previous back injury. Magnetic resonance imaging revealed a spinal intradural cystic lesion. After surgical removal, histopathological diagnosis was a hydatid cyst. The...