![]() TVT is transmitted as tumor cells break off from the main tumor and are transplanted into susceptible tissue. The most common penile tumor is TVT and is the tumor that is mostly preventable. If the blockage is severe enough a urinary obstruction could occur, leading to an emergency situation and potential kidney damage. If the tumor is located near the urethral opening, the flow of urine may be inhibited, leading to straining to urinate. Secondary infections may also be associated with penile tumors, often producing a foul smell. Some tumors (especially TVT) may be quite friable (small pieces may break off), and bleeding may be seen. Masses on the penis are irritating and cause excessive licking of the area. Tumors of the penis usually cause more clinical signs, in general, and are more uncomfortable. Occasionally they may ulcerate, bleed, itch or cause discomfort, and require more immediate attention, but usually ,they are found incidentally on routine examinations by veterinarians or by their owners. Most of these tumors are not causing clinical problems for the dog at the time of their discovery. Tumors that involve the prepuce of the dog are similar in type and biologic behavior to tumors found elsewhere on a dog’s skin. In-depth Information on Canine Tumors of the Penis and Prepuce The only tumor where preventive measures may help is TVT.Īn excellent preventive measure is to have your dog neutered at an early age. If chemotherapy is being used, periodic blood tests will need to be checked.Īnimals should be re-evaluated periodically for signs of recurrence. If treating TVT, limit exposure to other dogs until the tumor has regressed. Seek veterinary care if your dog has a fever, is feeling ill post-operatively, is straining to urinate or seems painful when urinating. If your dog begins to lick the area excessively, an Elizabethan collar designed to prevent licking at incisions may be required. If skin sutures are used, they should be removed in 7 to 10 days. Watch the incision daily for any sign of swelling or discharge. Treatment of Tumors of the Penis and Prepuce in Dogs Aspiration (inserting a needle and syringe into the tissue and obtaining a small sample of cells) and cytology (microscopic analysis of the cells) of the mass.Chest and abdominal radiographs (x-rays).If the tumor is causing a compressive lesion or blockage of the urethra, dogs may strain to urinate and become quite ill.ĭiagnosis of Tumors of the Penis and Prepuce in Dogs.Discharge (occasionally bloody) from the prepuce or penis.A mass or swelling on the penis or prepuce.If signs are present, they usually include: Many dogs with preputial tumors are not symptomatic. Dogs at risk for transmissible venereal tumors include breeding animals or intact male dogs allowed to roam freely. Transmissible venereal tumors are contagious and are spread by direct contact.īoxer dogs seem to have a higher incidence of skin tumors than most dogs. Penile and preputial tumors typically occur in older dogs, with the exception of a transmissible venereal tumor. Primary tumors of the urethra, especially transitional cell carcinomas, may occasionally extend into the penis. Other tumors, including squamous cell carcinoma and adenocarcinomas, occur much less frequently but have been reported. The most common penile tumors are transmissible venereal tumors (TVT). Some of the most common preputial tumors include mast cell tumors, squamous cell carcinomas, papillomas, and fibromas. ![]() Tumors of the penis are rare in the dog, but preputial tumors are more common. Tumors that occur on the prepuce are similar to the tumors that grow on other haired regions of the body. Overview of Tumors of the Canine Penis and Prepuce
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