Malignant acanthosis nigricans associated with osteogenic sarcoma.
D000052:Acanthosis Nigricans / Q000150:complications*; D000293:Adolescent; D002648:Child; D005266:Femoral Neoplasms / Q000150:complications*; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis; D012516:Osteosarcoma / Q000150:complications*; D012877:Skin Manifestations; D012878:Skin Neoplasms / Q000150:complications*