Aggressive ossifying fibroma of the mandible.

A case of aggressive ossifying fibroma has been presented, and emphasis has been placed on the importance of evaluating multiple parameters before a specific diagnosis is assigned. The unique histologic appearance of this particular lesion demonstrates a close relationship between the aggressive ossifying fibroma and a well-differentiated osteogenic sarcoma and advocates the need for more defined microscopic criteria to properly identify such lesions as either benign or malignant. It is suggested that proper surgical management of the aggressive forms of fibro-osseous lesions be dictated by the surgical judgement of the operator, in conjunction with what is best for the patient.