11/19/2024
My vet said my cat has a “resorptive lesion.” What is that?
The longer name is “Feline Oral Resorptive Lesion.” It’s a condition where the body begins to break down and absorb the parts of a cat’s tooth (in shorter terms, your cat has a cavity). Lesions are usually found on the outside of the tooth where the gum meets the hard surface of the tooth.
There are many theories about why cats develop these. Genetics, autoimmune disease, Calicivirus, and imbalances of calcium regulation, have all been proposed as correlations.
Once the resorption is exposed in the oral cavity, it opens a door for bacteria to invade. This can sometimes lead to a “tooth root abscess,”— a painful infection of the root. Oftentimes you will see swelling of the cheek, or chin.
Signs to look out for include: Bleeding from the mouth, drooling, jaw spasms, pawing, or rubbing the mouth, vocalizing when eating, difficulty eating, weight loss and bad breath. Sometimes cats will not show outward signs and the lesions are caught during a routine dental cleaning. The typical recommendation for treatment is extracting the tooth and roots.