Abstract
In a six-year-old, black-tailed prairie dog (Cynomys ludovicianus) with a chief complaint of inappetence, a tumor was found in the sublingual region of the oral cavity. Administration of an antibiotic, painkiller, and vitamin tablets, etc. for seven days was ineffective, and the tumor was removed surgically. Histopathologically, the tumor had grown in the connective tissues under the mucous epithelium, and it was diagnosed as an adenocarcinoma originating from the salivary gland.
