Meningeal Melanocytoma

**Semantic type:** Neoplastic Process

**Definition:** A usually well differentiated melanocytic neoplasm arising from the meninges. It is characterized by the presence of epithelioid, fusiform, polyhedral, and spindle melanocytes without evidence of hemorrhage, necrosis, or high mitotic activity. Presenting symptoms include headache, vomiting, and neurological manifestations. Complete excision is usually curative.

**Synonyms:** - Leptomeningeal Melanocytoma - Melanocytoma of Meninges - Melanocytoma of the Meninges - Meningeal melanocytoma - Meninges Melanocytoma