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.

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 ...

Editor’s note: Dr. Lee Pickett has retired, but Creators continues to distribute columns from her archive. This one is from 2022. Q: I recently adopted Missy, my mother’s middle-aged, mixed-breed dog.

Recent advances in comparative oncology have highlighted the striking similarities between canine mammary tumours and human breast cancer. Research in this field is leveraging the naturally occurring ...

Just like humans, as dogs age, it’s not uncommon for lumps, bumps and masses to appear on their body. While many of these lumps and bumps are harmless growths and considered benign, others could be ...

Young man veterinarian checking up the dog on table in veterinary clinic. Healthcare, medicine treatment of pets. Dogue de bordeaux.© maxbelchenko/Shutterstock.com ...

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 ...