[ case report of disappearing bone disease of the 1[st] metatarsus]

Disappearing Bone Disease is a rare vascular tumor. The presented case is a 15-year old boy with deformity of the 1st metatarsus in right foot who had a history of mild trauma. In X-Ray examination the proximal phalanx was absent. In the surgery, proximal phalanx was replaced by fibula bone and biopsy was done. After 15 months in follow up radiography osteolystic lesions in the 1[st] and 2[nd] metatarsus of right foot were observed. Due to severe pain and with the diagnosis of disappearing bone disease, the patient underwent radiotherapy. After radiotherapy, in control X-Ray of the right foot, osteolystic lesions of the 2[nd] metatarsus had been completely absorbed