Hemimandibular hyperplasia.
True hemimandibular hyperplasia is an uncommon maxillofacial deformity. Patients with this affliction present clinically with varying degrees of asymmetry characterized by an increase in ramus height, a rotated facial appearance with kinking at the mandibular symphysis, and prominence of the lower border of the mandible. In the advanced form, maxillary and mandibular alveolar bone overgrowth result in a compensatory canting of the occlusal plane and a significant functional malocclusion requiring bimaxillary surgical correction. Nine patients with the above condition were treated with various surgical methods over a 9-year period. The clinical results were satisfying and the long-term results showed good postoperative stability. The pathology of hemimandibular hyperplasia is described and the preexisting nomenclature further defined.
Chen
Y R
YR
Crainofacial Center, Department of Plastic and Reconstructive Surgery, Taipei, Taiwan, Republic of China.
Bendor-Samuel
R L
RL
Huang
C S
CS
D000293:Adolescent; D000328:Adult; D005146:Facial Asymmetry / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D008875:Middle Aged; D011859:Radiography; D016896:Treatment Outcome