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OBJECT Clinicoradiological differences and outcome following surgery in pediatric patients (< or = 16 years of age) with congenital irreducible atlantoaxial dislocation (IAAD) and reducible atlantoaxial dislocation (RAAD) were analyzed. METHODS Ninety-six patients (57 with IAAD and 39 with RAAD) were categorized as follows: Grade I, no deficits except(More)
Excision of petroclival meningiomas remains a surgical challenge. Extradural anterior petrosectomy is widely used as a skull base approach for these tumors; however, this approach has significant procedure-related morbidity. The authors describe an alternative technique of tailored intradural petrosectomy for removal of petroclival meningiomas. This(More)
STUDY DESIGN Case report and review of the relevant literature. OBJECTIVE To present a case of primary spinal myoepithelioma and discuss its clinical, radiological and histopathological characteristics. We report a long-term follow-up of 5 years. SUMMARY OF BACKGROUND DATA Myoepithelial neoplasms, represent a diverse morphological and biological(More)
BACKGROUND A small subset of patients with adult Chiari I malformation without basilar invagination (BI) and instability show ventral cervicomedullary distortion/compression and have symptoms pertaining to that. The cause of this ventral compression remains speculative. Additionally, it is unclear if these patients would require ventral decompression with(More)
Primary intraosseous cavernous hemangioma (PICH) of the skull is rare. We present a case of 11-year-old boy with PICH of the sphenoid bone. The Computed Tomogram showed a classical sunburst appearance. Safe excision as much as possible was attempted after embolization. The child however, succumbed to postoperative infection. The preferred treatment is(More)
BACKGROUND The microanatomy features of cerebral arteries may be variable and may be different in different ethnic groups. AIM To study the anterior cerebral artery (ACA) anatomy in North-West Indian cadavers. MATERIALS AND METHODS Microanatomy features of the ACA were studied in 15 formalin fixed human cadaveric brains under microscope. The outer(More)
OBJECTIVE The remote (more than 6 mo after injury) and isolated (not associated with any other cervical spinal fractures) Type II fractures of the odontoid (RI IIO) are unique in being inherently unstable and prone to malunion or nonunion, leading to cervical compressive myelopathy. The present study discusses their surgical management. METHODS Nineteen(More)
BACKGROUND Intracranial meningeal hemangiopericytoma (HPC) represents a rare and aggressive intracranial neoplasm located along the dural sinuses. It constitutes less than 1 % of all intracranial tumors and approximately 2-4 % of all meningeal tumors. The authors present our institute's experience in combined modality management of 15 successive patients of(More)
BACKGROUND Significant progress has been made in the molecular diagnostic subtyping of brain tumors especially gliomas. Designing effective tailored therapy remains the cornerstone for delving into the molecular heterogeneity and classification of gliomas. More homogenous tumor populations may lead to more uniform tumor responses in particular molecular(More)