title: [Aneurysmal bone cyst of the mandibular condyle].
abstract: BACKGROUND
  Aneurysmal bone cyst (ABC) is a pseudotumor of bone consisting of a septated cystic cavity filled with blood.
  
  
  METHODS
  We report a case of aneurysmal bone cyst of the left mandibular condyle discovered in a 10-year-old child with a history of mandibular trauma which had occurred one year earlier. The treatment consisted in surgical excision of the lesion and reconstruction using a chondro-costal graft. The post operative development led to a chondral hyperplasia.
  
  
  CONCLUSIONS
  We discuss the pathogenesis of the ABC centered on three theories, traumatic, vascular and tumoral of primary lesion. There are several complementary examinations to establish the diagnosis of ABC but the histopathological examination is the only way to confirm the diagnosis. The differential diagnosis of ABC is not an easy task. Surgical management with removal followed by immediate reconstruction is preferred.
authors.affiliation: Service de Chirurgie Maxillo-faciale (Prof. P. Seguin), Hôpital de Bellevue, CHU Saint-Etienne.
authors.forename: R
authors.initials: R
authors.lastname: Sokolo
authors.forename: F
authors.initials: F
authors.lastname: Alseriani
authors.forename: A-C
authors.initials: AC
authors.lastname: Lagrange
authors.forename: J-M
authors.initials: JM
authors.lastname: Dumollard
authors.forename: M
authors.initials: M
authors.lastname: Peoc'h
authors.forename: P
authors.initials: P
authors.lastname: Seguin
mesh_terms: D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis*; D016025:Bone Transplantation; D002356:Cartilage / Q000637:transplantation; D002648:Child; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008335:Mandibular Condyle / Q000473:pathology* / Q000503:physiopathology; D008336:Mandibular Diseases / Q000175:diagnosis*; D008338:Mandibular Injuries / Q000150:complications; D016059:Range of Motion, Articular / Q000502:physiology; D019651:Plastic Surgery Procedures