Huge ossifying fibroma of the maxilla.

Ossifying fibroma of bone is a central neoplasm of bone. It is more common in young adult with marked predilection for mandible. It is more common in females. Lesion is generally asymptomatic until growth produces a noticeable swelling and deformity. It presents an extremely variable roentographic appearance depending upon stage of development. This lesion is composed basically of many delicate interlacing collagen fibres, 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.