Guttural pouch leiomyosarcoma causing nasopharyngeal compression in a pony. (5th July 2016)

• Record Type: Journal Article
• Authors: Drew, S. J.; Meehan, L.; Reardon, R. J. M.; McGorum, B. C.; Dixon, P. M.; Del‐Pozo, J.
• Is Part Of: Equine veterinary education. Volume 30:Number 2(2018)
• Page Start: 64
• Page End: 69
• Publication Date: 2016-07-05
• Subjects: horse -- guttural pouch -- nasopharyngeal compression -- computed tomography -- leiomyosarcoma; Horses -- Diseases -- Periodicals; Horses -- Diseases -- Treatment -- Periodicals; 636.108905
• DOI: 10.1111/eve.12607
• Languages: English
• ISSNs: 0957-7734

Abstract

Summary: A 14‐year‐old Connemara cross gelding presented with abnormal respiratory noise and exercise intolerance. Upper airway endoscopy, ultrasonography, radiography and computed tomography revealed a large mass within the left guttural pouch causing marked left dorsal nasopharyngeal collapse and displacement and compression of the right guttural pouch. The horse was subjected to euthanasia and a post‐mortem examination confirmed the above findings. Histological and immunohistochemical examinations of the mass confirmed a diagnosis of guttural pouch leiomyosarcoma, a lesion previously unreported at this site.