We reviewed the medical records of 233 patients having electrodiagnostic evidence of polyradiculopathy. Patients with polyneuropathy or incomplete diagnostic evaluation were excluded. A clinical diagnosis was secured in 92 of the 118 remaining patients. Patients were separated into three groups based upon the anatomic location of root involvement: extradural (55), intradural-extraaxial (23), an...

We report a rare case of lumbar disc prolapse with intradural schwannoma at the same level. A 33-year-old man had had moderate right leg pain for about four years, which had worsened suddenly when he lifted heavy baggage. MR imaging revealed lumbar disc prolapse at L4/5. An intradural tumor that was iso-intense on T1-weighted and slightly hyperintense on T2-weighted images was also recognized a...

BACKGROUND The authors report the case of a 53-year-old woman suffering from thoracic myelopathy caused by intraspinal dissemination of hemangiopericytoma. In literature, hemangiopericytoma is commonly found as an intracranial lesion, and often hematogenously metastasizes to the bone or liver; however, intradural spinal dissemination is extremely rare. CASE DESCRIPTION The patient presented w...

BACKGROUND AND PURPOSE The frequency and amount of intracranial, intradural inflammatory vessel wall enhancement in giant cell arteritis remain unclear. The purpose of this work was to prospectively assess the intracranial extent of vasculitic changes in patients with giant cell arteritis using a dedicated MR imaging protocol optimized for assessment of mural changes of intracranial arteries. ...

Background & Importance: Cavernous angiomas are typically superficial lesionscreated by anomalous vessels and found in the skin or mucosa, but intradural locations are rare especially in the spine. We report a case of the spinal intradural Cavernous angiomas of the lumbar spine. Case Presentation: A 53-year-old man presented with a 6-month history of low back pain and bilateral radicular pain. ...

OBJECTIVE The purpose of this study was to evaluate the usefulness of proton density magnetic resonance (PD MR) imaging for localization of paraclinoid internal carotid artery aneurysms. MATERIALS AND METHODS From April 2014 to April 2015, 76 unruptured paraclinoid aneurysms in 66 patients were evaluated using PD MR and angiography (CT/MR angiography or digital subtraction angiography). The l...

Intradural tumours of the spine are usually benign and have a good prognosis, if they are diagnosed and removed early. Lumbar disc herniation is a common cause of chronic, acute, or recurrent lumbar radiculopathy. However, to date, there have been no reports of progressive neurological deficiencies due to the co-existence of two significant pathologies contributing to intradural and extradural ...

Although metastatic spread of prostate carcinoma to the spinal column is common, involvement of the spinal intradural extramedullary compartment is exceedingly rare. Presentation of intradural metastases tends to be late in the course of the disease, is frequently associated with cerebral metastasis and the role of surgery is limited to palliation and prevention of neurological deterioration. H...

Intradural spinal tumours, although relatively uncommon, can be diagnostically challenging, and often result in significant morbidity. They can be subdivided according to their cell of origin and whether they are within the cord (intramedullary) or intradural but extramedullary in location. The differential diagnosis for masses of the cauda equina region is often considered separately. Addition...

Intradural disc herniation is a serious and rare complication of intervertebral disc rupture. The preoperative diagnosis of intradural disc herniation is still difficult despite new neuroradiologic investigation possibilities including computerized tomography and magnetic resonance imaging and it is usually diagnosed by during surgery. Here we present an intradural disc herniation case at the l...