Orbital Chordoid Meningioma.

Chordoid meningioma, classified as WHO grade II, are rare tumors comprising only 0.5% of all meningiomas. Chordoid meningioma is an aggressive tumor with high local recurrence.

Prospective analysis of gross and fine electrode position and motor manifestations after STN-DBS and their correlation with electrode position.

Background: Deep brain stimulation (DBS) has been proven to be a safe, reversible, cost-effective procedure for treatment of Parkinson's disease. Final electrode position remains a significant factor determining the outcomes of subthalamic nucleus DBS (STN-DBS). This study aims to analyze the final lead position in three-dimensional plane and its effect on gross and fine motor outcomes in cases of advanced Parkinson's disease operated for STN-DBS.

3T MRI-SWI based volumetric analysis of the subthalamic and red nuclei in advanced Parkinson's disease.

Background: Parkinson's disease (PD) is a neurodegenerative disease mainly involving the dopaminergic neurons of the substantia nigra. The subthalamic nucleus (STN) also plays an important role in the disease process and now is an important target for the surgical management of the disease. However, not much is known about its morphology as the disease progresses.

Moyamoya disease presenting as bilateral acute subdural hematomas without deficits.

We report a patient presenting with imageological features of bilateral acute subdural hematomas and subarachnoid hemorrhage, who was subsequently diagnosed as a case of moyamoya disease. Imageological features, source of hemorrhage, literature review, and management are discussed. We report this case in view of its rarity in presentation with these imageological features.

Double hangman's fracture.

Study Design: Clinical case report and review of the literature.

Objective: To report a very rare case of bipedicular fracture of C2, C3 along with traumatic spondylolisthesis of the C2, C3 vertebral bodies together over C4 without any neurological deficits.

Summary Of Background Data: Cervical spine injury is a potentially fatal and debilitating incident because of the risk of damage of the cervical spinal cord.

Cervical osteochondroma presenting with acute quadriplegia.

Osteochondromas of the vertebral column are rare tumors and constitute about 3-4% of all primary vertebral column tumors. We report a case of osteochondroma arising from C3 lamina presenting with acute quadriplegia following a trivial fall. Computed Tomography (CT) and Magnetic Resonance imaging (MRI) showed bony lesion arising from C3 laminar arch compressing the cord with underlying spinal cord contusion.

Focal ligamentum flavum hypertrophy with ochronotic deposits: an unusual cause for neurogenic claudication in alkaptonuria.

Neurogenic claudication resulting from focal hypertrophy of the ligamentum flavum in the lumbar spine due to ochronotic deposits has not been reported till date. The authors discuss one such case highlighting the pathogenesis, histological and radiological features. Salient features of management are also emphasized upon.

Spinal canal stenosis at the level of Atlas.

We report here a rare case of high cervical stenosis at the level of atlas who presented with progressively deteriorating quadriparesis and respiratory distress. A 10-year-old boy presented with above symptoms of one-year duration with a preceding history of trivial trauma prior to onset of such symptoms. Cervical spine MRI revealed a significant stenosis at the level of atlas from the posterior side with a syrinx extending above and below.

Acanthamoeba meningoencephalitis in an immunocompetent patient: an autopsy case report.

Chronic granulomatous CNS infections may be caused by tuberculosis, fungi and rarely by free-living amoeba, especially in immunocompromised individuals. We report a rare, fatal case of granulomatous amoebic encephalitis in an immunocompetent patient mimicking CNS tuberculosis, and review the imageological features and diagnostic tests.

Frontal intradiploic angioleiomyoma.

A left frontal intradiploic angioleiomyoma in a 10-year-old girl is presented with a review of the literature. The pathological and differential diagnosis and management of this rare lesion is discussed.