Background: A mammary nodule was noted in a male rhesus macaque during physical examination.
Methods and results: Histopathological and immunohistochemical analysis was performed. Ductal carcinoma in situ was confirmed.
Conclusions: To date, there are two reports of mammary carcinoma in male non-human primates, and none in the rhesus macaque.
Keywords: Breast cancer; DCIS; male; mammary gland; neoplasia; non-human primate.
Published 2014. This article is a U.S. Government work and is in the public domain in the USA.