title: Acral lentiginous melanoma simulating "clear cell sarcoma of tendon and aponeuroses".
abstract: Clear cell sarcoma was closely mimicked in metastatic tumor deposits from two patients with acral lentiginous malignant melanoma. A subcutaneous deposit composed of glycogen-laden spindle cells dominated the presenting clinical picture in one patient. In the other, primary acral melanoma resembled a histiocytic tumor and metastatic tumor simulated clear cell sarcoma. The cases illustrate the pleomorphism that may be encountered in malignant melanoma.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D005534:Foot Diseases / Q000473:pathology*; D006225:Hand; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000473:pathology*; D008875:Middle Aged; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology*; D013710:Tendons