Nonossifying fibroma. Four cases and review of the literature

Nonossifying fibroma is a benign, lytic lesion that occurs in young children and adolescents. Radiographically, the lesion is multilocular and sharply demarcated. It often occurs at the metaphyseal region of long bones of the lower extremity and is usually eccentrically located. Four cases of nonossifying fibroma occurring during the past 7 years are presented with a review of the literature.