title: Heterotopic chondro-ossification: a case report.
abstract: We report heterotopic chondro-ossification occurring in the hand of a young man in the absence of trauma. The differential diagnosis includes: bizarre periosteal osteochondromatous proliferations of the hands and feet, mature lesions of myositis ossificans, osteogenic sarcoma, confluent lesions of extra-articular synovial chondromatosis, and nodular forms of florid periostitis. True heterotopic bone formation is a benign condition, which of itself requires no specific treatment.
mesh_terms: D000328:Adult; D002356:Cartilage; D002828:Choristoma / Q000000981:diagnostic imaging*; D006225:Hand; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging*; D011859:Radiography