title: Bimaxillary orthognathic surgery and condylectomy for mandibular condyle osteochondroma: a case report.
abstract: Osteochondroma is rarely reported in the maxillofacial region; however, it is prevalent in the mandibular condyle. This slowly growing tumor may lead to malocclusion and facial asymmetry. A 39-year-old woman complained of gradual development of anterior and posterior unilateral crossbite, which resulted in facial asymmetry. A radiological study disclosed a large tumor mass on the top of the left mandibular condyle. This bony tumor was surgically removed through condylectomy and the remaining condyle head was secured. Subsequently, bimaxillary orthognathic surgery was performed to correct facial asymmetry and malocclusion. Pathological diagnosis was osteochondroma; immunohistochemistry showed that the tumor exhibited a conspicuous expression of BMP-4 and BMP-2 but rarely expression of PCNA. There was no recurrence at least for 1 year after the operation. Patient's functional and esthetic rehabilitation was uneventful.
authors: Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, 7 jukheon-gil, Gangneung, 210-702 Gangwondo Republic of Korea.
authors: Young-Wook
authors: YW
authors: Park
authors: Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, 7 jukheon-gil, Gangneung, 210-702 Gangwondo Republic of Korea.
authors: Woo-Young
authors: WY
authors: Lee
authors: Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, 7 jukheon-gil, Gangneung, 210-702 Gangwondo Republic of Korea.
authors: Kwang-Jun
authors: KJ
authors: Kwon
authors: Department of Oral and Maxillofacial Surgery, College of Dentistry, Gangneung-Wonju National University, 7 jukheon-gil, Gangneung, 210-702 Gangwondo Republic of Korea.
authors: Seong-Gon
authors: SG
authors: Kim
authors: Department of Oral Pathology, College of Dentistry, Gangneung-Wonju National University, Gangneung, Korea.
authors: Suk-Keun
authors: SK
authors: Lee
keywords: BMP-4 expression; Bimaxillary orthognathic surgery; Condylectomy; Osteochondroma