BLUE NEVUS OF THE SCALP ASSOCIATED WITH M ENINGEAL MELANOCYTOMA

Introduction. Headache opposite to a blue nevus of the scalp can revea l intra cranial melanotic lesions. Case report. A 25-year-old man cauc asian was admitted to hospital for a first generalized tonic-clonic se izure. For six months, he has had episodic frontal-temporal right head ache opposite to a blue pigmentary cutaneous congenital lesion in fron tal territory (histology confirmed benign blue nevus). Neurologic exam ination noted a right congenital hereditary ophtalmoplegia. Cerebral M RI showed a right rolandic tumor with diffuse leptomeninge infiltratio n. This patient was operated of a meningeal melanocytoma with leptomen inges melanosis. Discussion. The apparition of headache related to a b lue nevus must lead to realize a cerebral MRI to look for a neuroectod ermic hamartoma: melanotic tumor (in particular melanoma), or leptomen inges melanosis with high potential of degeneration. Meningeal melanoc ytoma is a rare benign spinal or intra cranial melanotic tumor.