Osteoblastic osteogenic sarcoma in a 13-month-old girl.

Summary Osteosarcoma is exceptional in early periods of life. Therefore osteosarcomas involvingthe bones of the hand are extremely rare. We present a case of an osteogenic sarcoma involving the second metacarpal bone of a 13-month-old girl who has been remaining free of disease, after treatment — radial amputation and chemotherapy pre- and post-operative-, for a period of 10 years in the follow-up.