title: Endoscopic findings in the upper respiratory tract of 678 Thoroughbred racehorses.
abstract: The frequency of upper respiratory tract abnormalities was determined in a selected population of racing Thoroughbreds. The prevalence of pharyngeal lymphoid hyperplasia was 34.2%; left laryngeal hemiplegia was 1.8%; and epiglottic entrapment was 0.74%. Excluding pharyngeal lymphoid hyperplasia and tracheal exudate, 3.7% of the population examined had upper respiratory tract abnormalities.
authors.affiliation: Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, Kennett Square, PA 19348-1692.
authors.forename: C R
authors.initials: CR
authors.lastname: Sweeney
authors.forename: A D
authors.initials: AD
authors.lastname: Maxson
authors.forename: L R
authors.initials: LR
authors.lastname: Soma
mesh_terms: D000818:Animals; D004724:Endoscopy / Q000662:veterinary*; D004825:Epiglottis / Q000002:abnormalities; D005260:Female; D006429:Hemiplegia / Q000473:pathology / Q000662:veterinary; D006734:Horse Diseases / Q000473:pathology; D006736:Horses / Q000002:abnormalities*; D006965:Hyperplasia; D007818:Laryngeal Diseases / Q000473:pathology / Q000662:veterinary; D008297:Male; D010614:Pharynx / Q000002:abnormalities; D015619:Respiratory System Abnormalities