Dr. Phil Zeltzman’s Blog
Tucker, a 15 year old Shih Tzu, had a concerning mass on his behind. Every time he sat somewhere, he would leave a bloody spot. He was otherwise healthy. He enjoyed going for a 1 mile-long walk every day.
His owners noticed a small lump forming on the side of his anus. He also developed a larger mass behind the other one. The smaller mass became ulcerated (meaning it broke open) and started to bleed.
Tucker’s family vet took a cell sample (aka a “Fine Needle Aspirate”) and wisely sent it to the lab. The results showed that the mass was benign, meaning there was no obvious sign of cancer!
Encouraged by the good news, Tucker’s loving owner decided what few pet owners would do on a 15 year old dog: she decided to have the masses removed!
So Tucker’s family vet asked me to remove the masses. Since Tucker had a heart murmur (treated with medications), there was a concern for placing him under anesthesia. He had preop blood work and a comprehensive physical exam prior to anesthesia. Both were good.
Surgery was done to remove both masses. The smaller ulcerated mass was first removed, then the larger one.
Grandpa Tucker recovered smoothly from anesthesia and went home to heal.
He needed to wear a plastic cone and stay very quiet during his 3 week recovery.
A week later, the results of the biopsy came back: the small mass was a perianal adenoma (aka circum-anal adenoma, aka hepatoid tumor), which arises from the sebaceous glands around the anus. No cancer was found and the tumor had been successfully removed completely.
The larger mass was a lipoma, ie a benign fatty tumor.
So both masses were benign – the best news we could have received.
Three weeks after surgery, Tucker went to his family vet to have the incision rechecked. Everything looked good, so he was allowed to resume normal activity and enjoy his walks again.
As I always say, “age is not a disease.”
Tucker can enjoy life without a painful, raw, bleeding mass on his behind.
And Tucker’s dedicated owner was rewarded for her decision to help her 15 year old dog.
Phil Zeltzman, DVM, DACVS, CVJ, Fear Free Certified
Bruiser is a nine-year-old Boston Terrier mix who was having some discomfort in his hind end. His owners took him to see his family vet. A rectal exam revealed a firm mass just below the anus, hidden under the skin. Surgery was recommended to remove and biopsy the mass.
This surgery can be a bit tricky. The mass needs to be removed entirely, within healthy tissue to “get it all” or have clean margins. Yet we can’t be overly aggressive! We need to preserve the anus and more importantly, the muscles around it, which are responsible for continence.
Surgery at Brodheadsville Veterinary Clinic went very well. Bruiser had to wear a plastic cone around his head for three weeks. He went home with pain medications and antibiotics. The mass was sent out for biopsy.
The biopsy came back a week later…benign! It was a perianal gland adenoma, a common tumor in this area.
Bruiser is lucky his owners decided to remove the mass while it was fairly small. Removing a larger mass would be much more invasive. Early detection and a good decision from Bruiser’s owners made the surgery and recovery much smoother for Bruiser!