Spontaneous pulmonary adenocarcinoma in a common marmoset (Callithrix jacchus)

Abstract

A seven‐year‐old female common marmoset (Callithrix jacchus) presented with weight loss. Imaging revealed a left thoracic mass, confirmed at necropsy. Histology and immunohistochemistry suggested a well‐differentiated pulmonary adenocarcinoma. No evidence of local lymphovascular invasion or distant metastasis was observed. This is the first report of pulmonary adenocarcinoma in marmosets.