Squamous cell carcinoma in Mongolian gerbils (Meriones unguiculatus)

The Mongolian gerbil (Meriones unguiculatus), also known as Mongolian jird, is a rodent of the family Cricetidae. One of its most noticeable anatomical characteristics is the presence of ventral and dorsal scent glands, the former located in the abdominal region. The present study aimed at describing an incidence of squamous cell carcinoma (SCC) of the ventral scent gland in the species. A two‑year‑old animal characterized by an increased volume in the ventral abdominal region was treated at the Veterinary Hospital. After evaluating the macro- and microscopic characteristics of the mass tissue, a diagnosis of SCC could be confirmed. However, further studies on the physiology of neoplasms in Mongolian gerbils are needed in order to promote the well-being and longevity of individuals. Hormonal dysfunction of sexual origin is likely the most common factor associated with the occurrence of this type of neoplasm in the species.