title: Mature teratomas of the adrenal gland: imaging features.
abstract: BACKGROUND
  We describe the imaging features of three, histologically confirmed, mature teratomas of the adrenal gland not described previously in the radiologic literature and discuss the differential diagnosis of lipomatous tumors of the adrenal gland.
  
  
  METHODS
  Computed tomographic (n = 3), magnetic resonance imaging (n = 1), and sonographic (n = 1) features were reviewed retrospectively and the findings correlated with gross pathology and histology.
  
  
  RESULTS
  There were two females (age 8 and 18 years) and one male (age 17 years). Tumor size ranged from 5 to 11 cm (mean = 7.3 cm). All tumors were well circumscribed and contained fat components. Calcification was demonstrated in two tumors and was the predominant component in one. Only one was cystic.
  
  
  CONCLUSIONS
  The radiologic features of these tumors were typical of mature teratomas occurring elsewhere in the body. This should be considered in the differential diagnosis of lipomatous tumors of the adrenal gland, especially in children and adolescents.
authors.affiliation: Department of Diagnostic Radiology, University of Hong Kong, Queen Mary Hospital, Pokfulam, 102 Pokfulam Road, Hong Kong.
authors.forename: P L
authors.initials: PL
authors.lastname: Khong
authors.forename: K Y
authors.initials: KY
authors.lastname: Lam
authors.forename: C G C
authors.initials: CG
authors.lastname: Ooi
authors.forename: M J
authors.initials: MJ
authors.lastname: Liu
authors.forename: C
authors.initials: C
authors.lastname: Metreweli
mesh_terms: D000293:Adolescent; D000310:Adrenal Gland Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D000311:Adrenal Glands / Q000000981:diagnostic imaging* / Q000473:pathology*; D002648:Child; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012189:Retrospective Studies; D013724:Teratoma / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography