title: Radiological and clinical features of aneurysmal bone cyst of the jaws.
abstract: OBJECTIVE
  To evaluate the clinical and radiological features of aneurysmal bone cyst (ABC) of the jaws.
  
  
  METHODS
  A total of 64 cases (60 from the English-language literature and four new cases) were studied and critically evaluated with emphasis on the radiological features.
  
  
  RESULTS
  Age at time of initial diagnosis ranged from 4-78 years, with a mean age of 21.5 years and median age of 17 years. There were no differences in gender distribution. The ratio between the mandible and maxilla was 2.4:1. Ninety-two per cent of the lesions were located in the posterior region of the jaws. Lesions were radiolucent in 87% of cases, radiopaque in 2% and mixed in 11%. Fifty-three per cent were multilocular, 43% unilocular and 3% not loculated. The border of the lesions was defined but not corticated in 39%, well defined in 33% and diffuse in 28%.
  
  
  CONCLUSIONS
  ABC has a variable radiological appearance and should be considered in the differential diagnosis of any unilocular or multilocular radiolucent lesion of the jaws as well as any mixed radiolucent-radiopaque lesion.
authors.affiliation: Department of Oral Pathology and Oral Medicine, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Kaffe
authors.forename: H
authors.initials: H
authors.lastname: Naor
authors.forename: S
authors.initials: S
authors.lastname: Calderon
authors.forename: A
authors.initials: A
authors.lastname: Buchner
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D017824:Bone Cysts, Aneurysmal / Q000000981:diagnostic imaging* / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D007570:Jaw Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D007573:Jaw Neoplasms / Q000175:diagnosis; D008875:Middle Aged; D011859:Radiography