How Common is Insulinoma?
Insulinoma may be the most common type of tumor found in the ferret (adrenal tumors are also quite common). About one-third of ferrets over 3 years old are affected with insulinoma. Additionally, about half of insulinoma ferrets also have adrenal tumors. Because insulinoma is so common, all ferrets should have a complete diagnostic exam annually after the age of 3, including a CBC (chemical analysis of bloodwork), thoracic and abdominal radiographs, urinalysis, and physical manipulation to check for abnormalities by feel. Insulinoma may be more common in American ferrets due to inbreeding for special colors, and low-quality diets (high in fibers and sugars). Farm-raised ferrets (such as Marshall Farms) have a higher incidence of the disease.
