A re-recurrent case of ameloblastoma in an autogenous iliac bone graft

A re-recurrent case of ameloblastoma in an autogenous iliac bone graft is reported. A 49-year-old woman was referred to our department because of swelling and pain in the left side of the mandible. Her past medical history revealed that she had undergone mandibulectomy and reconstruction with antogenous iliac bone grafts two times, 25 and 15 years ago, for a diagnosis of ameloblastoma. Radiographic examination showed an osteolytic lesion in the central area of the grafted bone, and MRI images of the lesion showed low signal intensity on T1-weighted images and high signal intensity on T2-weighted images. An intraoral biopsy was done, and the pathological diagnosis was ameloblastoma. Under general anesthesia, continuous resection of the grafted bone and reconstruction of the mandible with microvascularized fibula bone were carried out. The postoperative course was uneventful.