PRIMARY INTRACRANIAL MALIGNANT MELANOMA A RARE PIGMENTED C.N.S LESION : A CASE REPORT AND REVIEW OF LITERATURE

Abstract

Primary Pigmented lesions of the Central nervous System are rare and diverse group of entities that run the gamut from Benign to malignant[1]. Among Pigmented CNS Tumor, Primary intracranial melanomas possesses a great interest among Neurosurgeons with its varied Clinical and Radiological patterns as they are most often confused and misdiagnosed with Meningioma, Schwannoma and thrombosed aneurysms . Primary cerebral melanomas, derived from the melanocytic cells that are precursor Cells of Melanoblasts considered to be originated from neural crest cells that are normally present in the leptomeninges. They are rare and occur in around 1% of all melanoma cases[2,4]. Primary intracranial malignant melanoma accounts 0.1% of intracranial neoplasms[3]. This report highlights a case of Primary Intracranial malignant melanoma of clivus in 40 year male, who has undergone left Pterional Craniotomy Trans Sylvian approach and excision of Tumor after proper dermatological, ophthalmological and systemic evaluations to exclude presence of any other lesions in the body. Which was proved malignant melanoma via Histopathology. Herein we have reported this case for its rarity and consideration as differential for prompt treatment.