Malignant melanoma of the orbit arising in a nevus of Ota.
D006801:Humans; D008297:Male; D008545:Melanoma / Q000209:etiology* / Q000473:pathology; D008875:Middle Aged; D009506:Nevus / Q000150:complications*; D009918:Orbital Neoplasms / Q000209:etiology* / Q000473:pathology