title: Heterotopic adrenocortical oncocytoma. A case report with light and electron microscopic studies.
abstract: BACKGROUND
  The case of a benign oncocytoma arising in a patient from retroperitoneal heterotopic adrenocortical tissue is reported; this tumor was found in a 44-year-old man.
  
  
  METHODS
  The tumor consisted of polygonal cells with granular eosinophilic cytoplasm packed with swollen mitochondria.
  
  
  RESULTS
  Scattered tumor cells showed abundant smooth endoplasmic reticulum suggesting that the tumor was of adrenocortical origin.
authors.affiliation: Department of Laboratory Medicine, University of Alberta Hospitals, Edmonton, Canada.
authors.forename: G K
authors.initials: GK
authors.lastname: Nguyen
authors.forename: R
authors.initials: R
authors.lastname: Vriend
authors.forename: D
authors.initials: D
authors.lastname: Ronaghan
authors.forename: W H
authors.initials: WH
authors.lastname: Lakey
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000306:Adrenal Cortex Neoplasms / Q000473:pathology*; D000328:Adult; D002828:Choristoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008854:Microscopy, Electron