title: Myositis ossificans progressiva.
mesh_terms: D000293:Adolescent; D000844:Ankylosis / Q000000981:diagnostic imaging; D002574:Cervical Vertebrae; D004576:Electromyography; D006621:Hip Joint; D006801:Humans; D008297:Male; D009135:Muscular Diseases / Q000175:diagnosis; D009221:Myositis Ossificans / Q000000981:diagnostic imaging*; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging; D011859:Radiography; D014034:Toes / Q000002:abnormalities