Mast Cell Tumor Pictures: A Visual Reference for Dog Owners

Testimonials and Photos of Mast Cell Tumors: Paw, Body, Head, Leg...

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An image library resource for dog owners; real photos of mast cell tumors.

A mast cell tumor diagnosis can be overwhelming, especially as tumors look different from one dog to another.  This page is designed to help dog owners understand how mast cell tumors may appear, change and heal over time. 

 How to use this page:  

  1. Select the body part where your dog’s lump, bump of tumor is.
  2. Click each thumbnail to see a slideshow and owner testimonials.

The collection contains photographs spanning multiple breeds, tumor locations and response rates.  As every dog is unique; your dog’s journey may vary to those shared.  

Dog's nose with MCT - treated with Stelfonta
Paul - Good cosmetic outcome
Yorkie Bichon with MCT, treated with Stelfonta
Oscar - 2nd opinion saved his nose
Dog with MCT, treated with Stelfonta
Sammi - Saved her ear
Dog treated with Stelfona for cancer on lip
Bob - Cancer removed from lip
Brooklyn
Brooklyn - Ear cancer free by day 28
Mast cell tumor on muzzle
Max - Tumor disappeared without a wound
STELFONTA-dog-profile-testimonial-MariahAndDennis
Mariah - Multiple tumors treated over time
dog beat mast cell tumor with Stelfonta
Oreo - Kept his shiny black nose
Mast Cell Tumor treated on Labrador's tail
Autumn - Kept her wagging tail
Dog with mast cell tumor, treated with Stelfonta
Kairi - Pea size MCT on back of thigh
Pitbull with mast cell tumor, post Stelfonta treatment
Shadow - Tumor near vulva removed
Golden retriever post Stelfonta treatment for MCT
Zuma - MCT on chest
French bulldog - mast cell tumor treated with Stelfonta
Percy - Prepuce healed
Boxer x Hound. Treated with Stelfonta.
Drake - Large MCT on the tail
Dog - Prepuce - Mast cell tumor
Brutus - Prepuce saved
Stelfonta testimonial - 8-year-old female Dingo cross
Lou - Treated multiple MCTs over time
Dog treated with STELFONTA
Sedona - 2.5cm³ tumor adjacent to anus
STELFONTA-dog-profile-testimonial-IvyAndRobyn
Ivy - Rapidly growing tumor quickly shrunk
STELFONTA-dog-profile-testimonial-BostonAndJacqui
Boston - The tumor went goopy, then fell away
Boston X Beagle 3 months post Stelftona injection
Rudy - hair only partially grown back at 3½ months
Dog after treatment with Stelfonta for mast cell tumors
Matilda - Kidney condition made surgery challenging
Golden retriever MCT treated with Stelfonta
Spinner - Surgical margins would have been challenging
Dog with MCT, treated with Stelfonta
Milo - A history of MCT
Boston Terrior
Lucy - A text book tumor removal
Golden Retriever Mast Cell Tumor on Paw
Arlo - Large wound; paw saved
Boxer mast cell tumor removed
Bella - Subcutaneous tumor under skin
Dog with MCT
Obi - Avoided surgery due to a heart condition
Stelfonta treated dog with mast cell tumor
Lucy - Back to her usual curious self
Dog with mast cell tumor - treated with Stelfonta
Ella - Impressed with rapid healing
American Eskimo dog
Lucy - 12-yr-old American Eskimo
Stelfonta testimonial - 5-year-old female Boxer
Ruby - Treated two tumors, months apart
Charlie
Charlie - No wound, but still kicked the cancer
STELFONTA testimonial - 8-year-old male Bull Terrier
Nase - Within a month, more energy than before
Dog treated with Stelfonta injection
Narla - Large wound; healed without intervention
STELFONTA-dog-profile-testimonial-LylaAndSarah
Lyla - Large wound for a seemingly small tumor
Dr Sue Cancer Vet with dog Isabela
Isabela - Large wound days 4-7, healed fully
STELFONTA-dog-profile-testimonial-ShirleyAndSteve
Shirley - Quickly bounced back to her normal self
Non surgical treatment saved leg
Daisy - Avoided an amputation
Dog with Mast Cell Tumor treatment on Paw
Lilly - Granulation tissue on paw
Labrador with mast cell tumor
Hampton - A large wound
dog with mct, treated with Stelfonta
Mia - Oblivious to the process
Husky with STELFONTA treatment
Lilly - Tumor free at the 28-day check
Dog with cancer between tendons
Penny - Removed cancer between her tendons
Gracie Mae - Labrador
Saved Gracie-Mae's Leg
Americal cocker spaniel stelfonta treatment
Treasure - running around 48 hours after
Dog treated with Stelfonta
Wolf - Foot healed quickly
STELFONTA-dog-profile-testimonial-LizzieAndAlison
Lizzie - Three tumors treated over time
Basset Hound with MCT
Waffles - Longer than average to heal
Dog with mast cell tumor on paw - treated with Stelfonta
Shadow - MCT between toes
Dog treated with Stelfona for cancer on lip
Bob - Cancer removed from lip
Gracie Mae - Labrador
Saved Gracie-Mae's Leg
STELFONTA-dog-profile-testimonial-BarneyAndWendy
Barney - Needed two injections
Tayta-profile
Tayta - her leg needed a second injection

The photographs shared here come from real dogs at different stages of diagnosis and treatment, showing a range of tumor appearances, body locations and responses.  The images are not intended for diagnosis but to help owners know when to consult their veterinarian and the range of responses to treatment. 

Please consider helping other dog owners by sharing your dog’s STELFONTA Journey

Simply email up to 10 photos to Gemma@stelfonta.com  Gemma will create a slideshow of your dog’s tumor destruction and healing process.   Please include:

  • A photo of the tumor before STELFONTA treatment
  • A photo taken on or after Day 28

You may also be interested in Clinical photos, taken by veterinarians documenting their patients’ STELFONTA Journey.

10 year old Chihuahua with mast cell tumor on leg
MCT WAS HERE

Arch Duke
10.5 years, Chihuahua

Non-surgical removal of Mast Cell Tumor

Arch-Duke had a mast cell tumor on his leg treated with STELFONTA. Mindy explained Arch-Duke was “not a perky little boy for the first few days and was reluctant to put weight on his foot”. But he “was back to 3.5lbs of pure sass within ten days” Mindy reports. “The wound fully healed and he’s now cancer free”. Great to hear!