Endovascular repositioning and resizing of the distal catheter of a ventriculoatrial shunt.

Ventriculoatrial (VA) shunts are an effective alternative to ventriculoperitoneal shunts for diversion of cerebrospinal fluid in patients with hydrocephalus. Accurate placement of the distal end of a VA shunt in the right atrium is imperative for appropriate drainage and can be technically challenging. Misplaced or dislodged shunt catheter needs urgent repositioning, which can be performed by endovascular techniques.

Cystic Chordoma of the Cavernous Sinus.

Chordomas are the tumors commonly involving base of skull which are predominantly solid in consistency. A cystic chordoma of the cavernous sinus is an extremely rare entity and has never been reported. We report a 26-year-old male presenting with gradually progressive right-sided sixth nerve palsy and headache.

Intraconal optic sheath schwannoma: report of two cases.

Optic sheath schwannoma is extremely rare. We discuss two cases of intraorbital intraconal optic sheath schwannoma. Vision significantly improved in both patients following the surgery.

Polytetrafluoroethylene sponge syringosubarachnoid shunt.

Syringomyelia is condition in which a cyst or cavity forms inside the spinal cavity. Its management always remains a difficult. A variety of surgical techniques have been used in management of syringomyelia.

Giant ventral midline schwannoma of cervical spine : agonies and nuances.

Pure ventral midline giant schwannoma is an extremely rare entity. Spinal intradural extramedullary schwannomas commonly occur posterolateral or anterolateral to the spinal cord. A case of a pure midline ventrally situated giant pan cervical extramedullary schwannoma in an 18-year-old male patient with compressive myelopathy and sphincter involvement is presented.

Complete recovery of visual loss following surgical treatment of mucopyocele of the anterior clinoid process.

A mucocele is a collection of mucus, which is lined by the mucus-secreting epithelium of a paranasal sinus. Paranasal sinus mucoceles occur as a result of inflammation, tumor, trauma or surgical manipulation. The anterior clinoid process may be pneumatized by an extension of the sphenoid paranasal sinus air space during normal development.

Seeding metastases of a benign intraventricular meningioma along the surgical track.

Seeding metastases of a benign intraventricular meningioma along the surgical track is rare. We report a patient with a benign fibroblastic intraventricular meningioma that had spread along the path of previous surgery; the recurrences as well as the primary tumor were benign.

Trigeminal neurinomas with extracranial extension: analysis of 28 surgically treated cases.

Object: The object of this paper was to review the authors' experience with 28 cases of trigeminal neurinomas having an extracranial extension.

Methods: The authors analyzed 28 cases of trigeminal neurinoma in which there was an extracranial extension of the tumor. All patients were treated in their department between the years 1989 and 2009.

Pure ventral midline long segment schwannoma of the cervicodorsal spine: a case report.

Spinal intradural extramedullary schwannomas commonly occur posterolateral or anterolateral to the spinal cord. A case of a pure midline ventrally situated cervicodorsal extramedullary schwannoma in a 33-year-old female patient with subacute cord compression and sphincteric involvement is presented. Spinal MR imaging showed a C2-D3 midline ventrally situated extramedullary tumor with severe spinal cord compression.

A massive cervicomedullary intramedullary spinal cord lipoma.

We present a large cervicomedullary intramedullary lipoma in a 17-year-old boy, who presented with spastic quadriparesis and exaggerated reflexes. MRI revealed an intramedullary lipoma extending from the craniovertebral junction to the sixth cervical vertebra. There was no spinal dysraphism.

Retrospective analysis of peripheral nerve sheath tumors of the second cervical nerve root in 60 surgically treated patients.

Object: This study is a retrospective analysis of 60 surgically treated patients with 64 peripheral nerve sheath tumors (PNSTs) at the second cervical (C-2) nerve root. The anatomical subtleties of these tumors and their implications for surgical strategy when compared with other spinal PNSTs and other tumors in the foramen magnum region are reviewed.

Methods: Sixty patients with C-2 PNSTs treated surgically in the Department of Neurosurgery at King Edward VII Memorial Hospital and Seth Gordhandas Sunderdas Medical College between 1992 and 2006 were studied.

Retroorbital hemangiopericytoma and cavernous sinus schwannoma--case report.

An 18-year-old male presented with severe proptosis and blindness in the right eye. Neuroimaging revealed a large and hypervascular tumor in the right retrobulbar region and a large tumor in the left cavernous sinus. Angiography showed the right tumor was extensively vascular, fed by a hypertrophic ophthalmic artery, and the left tumor was moderately vascular, fed by a large middle meningeal artery.