Tumors develop when cells in the body grow uncontrollably. Finding a tumor on your dog can be very frightening, but they are not always detrimental — some are benign, while others are malignant.

"My Labrador has a tumor on his spleen. Should it be removed? Should the spleen also be removed?" A: Each dog's case is different, and you will need to discuss this with your regular veterinarian, as ...

There's new hope for a devastating cancer in dogs that's often deadly because there are no early warning signs.

Woody the dog required complex brain surgery at DoveLewis Veterinary Emergency & Specialty Hospital in Portland to treat his ...

Cancer kills many people and pets each year. Studies suggest that between one-third and one-half of dogs will develop cancer ...

Q: I recently adopted Missy, my mother's middle-aged, mixed-breed dog. She was never spayed, and she has two small masses in her mammary glands. Are these masses likely to be cancer? If not, should I ...

In dogs, mast cell tumors are the most common malignant skin tumors, accounting for approximately 16–21% of all skin cancers. These tumors can appear anywhere on the body but are most frequently found ...

Hemangiosarcoma is a cancer of cells that line blood vessels and is a common cancer in dogs. Known as the “silent killer”, it ...

My family owns a few dogs of a fairly uncommon breed called the Glen of Imaal Terrier. One is almost 12. We noticed that he had a foul odor from his face, so we took him into our local rural ...

Luke Robinson walked 2,300 miles to find out why his beloved dog died of cancer. Nov. 5, 2012— -- Luke Robinson never liked dogs much until an ex-girlfriend offered him a puppy while he was ...