Garré's proliferative periostitis occurring simultaneously in four quadrants of the jaws.

Typically, Garré's osteomyelitis affecting the jaws is unilateral and is restricted to the mandible. We are reporting a case in which all four quadrants were involved, an occurrence which we believe must be extremely unusual and has not been reported previously. Conservative management over a period of 3 years resulted in complete resolution, with return of normal facial and osseous contours.