meningeal melanocytoma

meningeal melanocytoma

A rare neoplasm of the CNS that produces melanin, generally regarded as benign, which in some cases evolves towards melanoma.

Diagnosis
Positive for S100 protein, neuron-specific enolase, melanoma-specific antigen.
References in periodicals archive ?
Pigmented lesions of the leptomeninges includes pigmented meningioma, metastatic malignant melanoma, primary malignant melanoma, meningeal melanocytoma, melanotic schwannoma, and melanoblastosis.
Meningeal melanocytoma of the C8 nerve root: case report.