title: Epithelioid hemangioendothelioma in the right auricle of an adult, male Rhesus macaque (Macaca mulatta).
abstract: BACKGROUND
  A 9-year-old, male castrate, Rhesus macaque was euthanized following a prolonged history of chronic renal failure.
  
  
  RESULTS
  Necropsy revealed a proliferative lesion within the right cardiac auricle composed of neoplastic epithelioid cells which infiltrated the myocardium and frequently exhibited intracytoplasmic luminae. Cells multifocally exhibited strong cytoplasmic immunoreactivity for Factor VIII-related protein (von Willebrand's factor).
  
  
  CONCLUSIONS
  The histological characteristics of this tumor are consistent with a diagnosis of epithelioid hemangioendothelioma, an intermediate-grade vasoformative neoplasm which has to our knowledge not previously been reported in the heart of a non-human species.
authors.affiliation: Department of Veterinary Pathology, Armed Forces Institute of Pathology, Washington DC, USA. eric.lombardini@us.army.mil
authors.forename: E D
authors.initials: ED
authors.lastname: Lombardini
authors.forename: R
authors.initials: R
authors.lastname: Virmani
authors.forename: T W
authors.initials: TW
authors.lastname: Blanchard
authors.forename: J F
authors.initials: JF
authors.lastname: Lafond
authors.forename: S
authors.initials: S
authors.lastname: Ménard
authors.forename: M
authors.initials: M
authors.lastname: Doré
mesh_terms: D000818:Animals; D006325:Heart Atria / Q000473:pathology; D006338:Heart Neoplasms / Q000473:pathology / Q000662:veterinary*; D018323:Hemangioendothelioma, Epithelioid / Q000473:pathology / Q000662:veterinary*; D008253:Macaca mulatta; D008297:Male; D008992:Monkey Diseases / Q000473:pathology*