Primary avascular necrosis of the halluces in a ballet dancer.
D000293:Adolescent; D003615:Dancing; D005260:Female; D006214:Hallux; D006801:Humans; D009989:Orthotic Devices; D010020:Osteonecrosis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy; D011859:Radiography