Fig. 16. A, Epiglottic abscess (note the bulge on the dorsal aspect of epiglottic cartilage. B, Drainage of abscess by a combination of laser and endoscopic scissor, C, 1 month later.
It has been proposed that trauma from soft palate ulceration, foreign body while swallowing (i.e., dirt, sharp ends from diet) or intermittent ary-epiglottic entrapment is the original cause of mucosal irrita- tion. The lesions are typically chronically active with granulation tissue and hyperplastic epithelial margins.334 These lesions are thought to predispose the horse to intermittent or persistent DDSP and can be seen
in association with ulcers of the caudal free edge of the soft palate.
Diagnosis
Lesions of the sub-epiglottic area are particularly easy to miss unless the swelling or disease extends beyond the lateral border of the epiglottis. The au- thor has seen a fair number of sub-epiglottic lesions in association with mucosal lesions on the medial
Fig. 17. Epiglottic cartilage is elevated to allow observation of the ventral aspect of the epiglottis. 112 2016 Vol. 62 AAEP PROCEEDINGS
