Extensive ossifying fibroma of jaw.

Ossifying fibroma of bone is a central neoplasm of bone and it is more common in young adult with marked predilection for mandible and also it is more common in female. Lesion is generally asymptomatic until growth produces a noticeable swelling and mild deformity. It presents an extremely variable roentographic appearance depending upon the stage of development. This lesion is composed basically of many delicate interlacing collagen fibers, seldom arranged in discrete bundle, interspersed by large numbers of active, proliferating fibroblasts. The lesion should be excised conservatively. We present a case of huge ossifying fibroma arising from maxilla.