by use of endoscopy , 75 horses with respiratory noise and/or exercise intolerance were determined to have structural arytenoid cartilage abnormalities ( 60 primary , 11 after previous laryngeal surgery ) , or failed left laryngoplasty ( 4 horses ) for laryngeal hemiplegia in which the arytenoid cartilage still appeared normal .
C0023078
laryngeal
C0003943
arytenoid cartilage