Partial resection of the plica salpingopharyngeus for the treatment of three foals with bilateral tympany of the auditory tube diverticulum (guttural pouch).

Case Description: 3 foals were referred for treatment of tympany of the auditory tube diverticulum (guttural pouch).

Clinical Findings: Bilateral guttural pouch tympany was diagnosed in all 3 foals on the basis of clinical signs and results of radiographic and endoscopic evaluations and gutturocentesis. In each foal, previous medical or surgical interventions or both had failed to correct the problem.