Disseminated hemangiosarcoma in a juvenile rhesus macaque (Macaca mulatta)

Amanda P. Beck, Stanton B. Gray, Beth K. Chaffee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Hemangiosarcoma is a malignant tumor of vascular endothelial origin that is sporadically reported in rhesus macaques. This report describes the clinicopathologic features of a 1-y-old rhesus macaque with spontaneous disseminated hemangiosarcoma that originally presented as a focal cutaneous mass. Histopathologic examination of multiple tumor foci revealed regions in which the neoplastic cells formed diffuse sheets, as well as the well-defined vascular channels typically associated with hemangiosarcoma. Multiple endothelial cell immunomarkers were used to confirm the diagnosis in this rhesus macaque. The tumor exhibited staining properties consistent with those seen in domestic animals and humans. In addition, to our knowledge, this animal represents the youngest case of any form of spontaneous hemangiosarcoma reported in the rhesus macaque to date.

Original languageEnglish (US)
Pages (from-to)246-253
Number of pages8
JournalComparative Medicine
Issue number3
StatePublished - Jun 2016

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology
  • General Veterinary


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