Pityrosporum pachydermatis in pendulous and erect ears of dogs

Authors: Baxter M
Publication: New Zealand Veterinary Journal, Volume 24, Issue 4, pp 69-70, Apr 1976
Publisher: Taylor and Francis

Animal type: Companion animal, Dog
Subject Terms: Ear/nose/throat, Fungal/yeast, Inflammation, Disease/defect
Article class: Correspondence

---

Abstract: The yeast Pityrosporum pachydermatis is one of the most frequent micro-organisms associated with otitis externa in dogs. Gustafson (1955) succeeded in experimentally producing a mild otitis by instilling suspensions of the yeast into the ear canal of dogs but the role of micro-osrganisms in general in the aetiology of the disease has been questioned by Fraser (1965) and others. Fraser concluded from comparisons of otitic and healthy ears that bacteria and fungi are not important causative agents of the disease. Their role in aggravating and prolonging the condition is, however, more well known. Most studies on the assoiation of P. pachydermatis with otitic and non-otitic ears indicate that this organism is a common commensal within the ear canal…

---