Dogs By Joe Bodewes, DVM Drs. The overall incidence in dogs is not very high because of the large number of dogs that are castrated. However, in intact male dogs these tumors are considered fairly common. The tumors are usually fairly easy to recognize and diagnose.
Treatment consists of castration and is usually curative.
However, they can occur in intact males of any age. There does not appear to be any breed predilection for this tumor. The current cause of testicular tumors is unknown. Except for the increased risk of these tumors in cryptorchid dogs, no other risk factors are readily apparent. While there are differences in the types of tumors, they are often treated similarly and are therefore commonly lumped together as testicular tumors.