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 ?
1] From the histopathological point of view the principle differential is between melanocytoma and malignant melanoma^ 12] Meningeal melanocytomas are histologically characterized as cellular lesions.