Paranasal sinus surgery is a challenging operation that can encounter complications, such as pneumocephalus, a condition in which air is trapped inside the brain. Veterinarians recently used a computed tomography (CT) scan to decide the best way to treat a Quarter Horse with a benign bone tumor growing in the paranasal sinus. As a result, the horse survived and was able to compete with no reoccurrence reported at the follow-up examination two years later.

Claude A. Ragle, DVM, Dipl. ACVS, APVP, and his colleagues at Washington State University, treated a 2-year-old stallion that was having severe trouble breathing. The X rays showed a bone mass growing inside the sinuses. It was hard to tell how the mass was oriented within the head based on X rays alone.

Bony tumor in horse's sinus

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