Aseptic necrosis of the first metatarsal.
D001265:Athletic Injuries / Q000150:complications; D002648:Child; D018409:Foot Injuries; D006801:Humans; D008297:Male; D008684:Metatarsus; D009336:Necrosis / Q000209:etiology; D010007:Osteochondritis / Q000209:etiology