Aggressive paranasal sinus ossifying fibroma.

Sixty-one cases of an aggressive OF involving the paranasal sinus area are reviewed from the literature. We describe another case of this unusual lesion in an 11-year-old girl. These tumors share a similar radiographic appearance, aggressive clinical behavior, and tendency for recurrence after incomplete treatment. Our experiences show that active OF accurately describes this entity and avoids the confusing histologic nomenclature usually encountered. The head and neck surgeon should be aware of this diagnosis so aggressive en bloc resection can be employed whenever possible.