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Are my dog's perianal gland and anal sac tumors the same thing?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 11 years and 9 months old | 20 lbs

Are perianal gland tumor and anal sac tumors the same thing?

1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on November 17th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! No, these are 2 very different tumors that arise from different tissues and also behave differently. Perianal gland tumors tend to be more benign in the vast majority of cases taking a very long time to progress as opposed to anal sac tumors which are malignant and have a chance of spreading. Good luck!

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