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My senior dog has a growing skin mass on his face. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Rat Terrier | Male | neutered | 14 years and 5 months old | 18 lbs

My dog has had this spot on his face for about 3 months now. He has had two large skin masses (benign but the size of large marbles) removed from his face last year, but this spot is flat and seems to keep growing. Should I be concerned? He doesn’t seem to notice it at all! My dog is 14 1/2 years old, purebred rat terrier, taking Keppra and Gabbapentin for senility and some form of doggy dimentia. Thank you!

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1 Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on September 18th, 2018

I am sorry to hear about your concern for Charlie! I would recommend a visit to the vet for an examination. This mass is ulcerated, which is more concerning than a subcutaneous mass. When we have a mass in this area I am also concerned it could actually be a sign of an infected tooth root which sometimes abscess to the skin in this area. Your vet can look the area over. If a tooth is suspected as the cause they may recommend an x-ray. Otherwise they may recommend cytology of the mass to determine the best treatment.

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