Kaposi's sarcoma with chondrosarcoma of the tibia.
D001706:Biopsy; D001859:Bone Neoplasms / Q000150:complications* / Q000209:etiology; D002813:Chondrosarcoma / Q000150:complications* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D012514:Sarcoma, Kaposi / Q000150:complications* / Q000473:pathology; D013977:Tibia