A single caudally based frontonasal bone flap for treatment of bilateral mucocele in the paranasal sinuses of an American miniature horse.

OBJECTIVE: To describe successful surgical treatment of bilateral mucocele in an American Miniature horse using a single bone flap to approach right and left paranasal sinuses simultaneously. STUDY
DESIGN: Clinical report. ANIMAL: A castrated 6-year-old American Miniature Horse with a bilateral mucocele of the paranasal sinuses.
METHODS: A single bilateral frontonasal sinus flap was used in a standing procedure to access the left and right conchofrontal sinuses simultaneously to remove the mucous contents and to establish permanent drainage into the nasal cavities.
RESULTS: The novel procedure used in this horse allowed excellent access to right and left paranasal sinuses simultaneously and completely resolved nasal discharge and difficulty breathing.
CONCLUSIONS: A single, bilateral frontonasal sinus flap can be used successfully as a standing procedure to treat bilateral sinonasal disease in horses. © Copyright 2013 by The American College of Veterinary Surgeons.