Abstract
Ossifying fibroma is one of a group of fibro-osseous lesions which are rarely seen in the long bones.
The patient reported here is a 15-year-old female whose tibia and fibulla is affected.
Seventy-four cases have been reported from 1966 to 1984 throughout the world (Japan: 25, Other countries: 49).
We compared these two groups, and found that there were some differences in the age and sex between them.
This report describes clinical features of ossifying fibroma, and its distinction from fibrous displasia.
