Metaphyseal giant-cell tumor in a girl of 14.

A case of giant-cell tumor in the radial metaphysis of a 14-year-old girl is reported. 3.5% of these tumors are detected in patients younger than 15 years of age, when closure of the cartilaginous growth plate occurs. A significant number of the 14% of giant-cell tumors detected in patients younger than 20 may originate in a metaphysis during adolescence and become symptomatic only after long bone epiphyseal involvement.