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LIMAS and Tio 1 proposed the term meningeal melanocytoma first time in 1972 to describe a primary melanotic tumor of the leptomeninges with prolonged clinical course and benign histology.Meningeal melanocytoma of the central nervous system is rare and benign primary meningeal melanocytoma(PMM) is more exceptional,and also less usual than the malignant types. 2 This rare tumor falls under the subclassification of primary melanocytic lesions in the World Health Organization’s classification of central nervous system tumors. 3 PMM located in the foramen magnum region
LIMAS and Tio 1 proposed the term meningeal melanocytoma first time in 1972 to describe a primary melanotic tumor of the leptomeninges with prolonged clinical course and benign histology. Meningeal melanocytoma of the central nervous system is rare and benign primary meningeal melanocytoma (PMM) is more exceptional , and also less usual than the malignant types. 2 This rare tumor falls under the subclassification of primary melanocytic lesions in the World Health Organization’s classification of central nervous system tumors. 3 PMM located in the foramen magnum region