Foreign-body granuloma occurring in the mandible subsequent to orthognathic surgery: A case report

We report the first case of foreign-body granuloma occurring in the mandibl e of a patient with a history of orthognathic surgery. A 20-year-old male p atient had a hard swelling and pain in the left mandibular angle and the pa rotid area. Plain radiographs showed a radiolucent lesion extending from th e buccal area under the left sigmoid notch oi the mandible to the mandibula r angle. Computed tomographs showed an expanded osteolytic mass in the same area, with destruction of most of the bone on the buccal side. A microscop ic examination revealed filamentous foreign material associated with chroni c inflammatory cell infiltration and an aggregation of multinucleated giant cells. Foreign-body granuloma in the mandible, although rare, should be in cluded in the differential diagnosis in cases of postoperative masses.