title: [A case of clear cell sarcoma of tendons and aponeuroses with a large amount of melanin--malignant melanoma of the soft part].
abstract: We report a 62-year-old male with a clear cell sarcoma of tendons and aponeuroses arising in the area of the M. flexor carpi ulnaris. Grossly, the tumor had a black appearance. Light microscopic inspection showed a large amount of melanin. Electron microscopically, the tumor pigment was located within melanosomes. The possibility that the tumor represents a neural crest-derived melanotic tumor (malignant melanoma) of the soft part is discussed.
mesh_terms: D000230:Adenocarcinoma / Q000032:analysis* / Q000473:pathology; D006801:Humans; D008297:Male; D008543:Melanins / Q000032:analysis*; D008545:Melanoma / Q000032:analysis* / Q000473:pathology; D008875:Middle Aged; D012983:Soft Tissue Neoplasms / Q000032:analysis* / Q000473:pathology; D013710:Tendons / Q000032:analysis
chemical_list: D008543:Melanins