Are there different types of testicular tumors?
There are three common types of testicular tumors: Sertoli cell tumors, seminomas, and interstitial cell tumors. While there are differences in the types of tumors, they are often treated similarly and are therefore commonly lumped together as testicular tumors. What are the symptoms? Sertoli cell tumors show symptoms of swelling of the testicular and scrotal area. If the dog is cryptorchid the swelling will occur in the inguinal or abdominal area depending on the location of the testicle. Up to 50% of the Sertoli cell tumors will produce estrogen and the dog will suffer symptoms of hyperestrogenism. These include an enlarged prostate gland, enlarged mammary glands and nipples, symmetrical hair loss, anemia, and the tendency to attract other male dogs. Sertoli cell tumors may metastasize to the abdomen, lung, thymus and brain, however this occurs in less than 15% of the cases. Seminomas will also appear as swellings of the testicle, scrotum and inguinal or abdominal area. Seminomas pro