title: Unusual misdiagnosis of choroidal melanoma.
abstract: A papillary, white mass observed in a 45-year-old man was diagnosed as an optic nerve glioma. The histological examination revealed a juxtapapillary amelanotic choroidal malignant melanoma, extending over the optic disc and infiltrating the optic nerve. This clinical picture is quite infrequent in malignant melanoma of the choroid.
mesh_terms: D002829:Choroid / Q000473:pathology*; D002830:Choroid Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003389:Cranial Nerve Diseases / Q000175:diagnosis; D003951:Diagnostic Errors; D005910:Glioma / Q000175:diagnosis; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D009901:Optic Nerve Diseases / Q000175:diagnosis