10/24/2026
Did you know that Mast Cell Tumors represent 14-21% of all skin tumors in dogs? And certain breeds, like Retrievers, etc are more susceptible to getting them? Last year, our marketing "guru" Tiina lost her dog of 11 1/2 years, Jackson, to Mast Cell Tumor (MCT), a type of cancer. Tiina shares that "It was quick, aggressive and a silent killer" and that "we want to spread awareness and help educate others, so you can save your "Jackson", when we couldn't. If anyone has any questions or wants to reach out, comment on the post and I will be happy to share anything and everything that I've learned about this terrible disease".
In the meantime, here's some information about Mast Cell Tumors so you can be educated and aware of what to look for. As always, for anything medical, please work with your veterinarian.
Mast Cell Tumors (MCTs) are the most common skin cancer in dogs, appearing as varied lumps and skin growths. While they primarily affect older dogs of any breed, some breeds like Retrievers, Boxers and Bulldogs are predisposed. Early detection through regular physical checks for lumps, followed by a biopsy for diagnosis and grading, is crucial for a good prognosis, as low-grade MCTs are common, and effective treatments like surgery or injections exist. If you find a suspicious lump, meet with your veterinarian immediately.
Appearance: They can vary widely in appearance, from small, hairless nodules to larger, ulcerated masses, or even diffuse lesions.
Location: While most common on the trunk, limbs, and head/neck, they can also affect internal organs.
Age and Breed: MCTs are more common in older dogs but can occur at any age and affect all breeds, though some breeds, such as Boxers, Pugs, Boston Terriers, and Bulldogs, are more predisposed.
Early Detection: Early detection through routine physical exams is key for better outcomes.
Biopsy for Grading: A biopsy is necessary to determine the tumor's grade, which greatly influences the