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.

Explore causes, treatments, and prevention strategies for dog cysts. Reviewed by Jennifer Coates Tumors, growths, and cysts are common in dogs, particularly in older ones, and should be promptly ...

Q An emergency room vet found a large, round, solid mass on the spleen of our 13-year-old retriever mix dog. The vet recommended that the spleen be removed. The vet also said an ultrasound biopsy was ...

Dogs have an acute sense of smell. Researchers are finding that dogs can sniff out cancer by detecting the odor signatures of breast, colorectal, lung, and other types of cancer. More investigation ...