Gatineau Matthieu, Lussier Bertrand, Alexander Kate
Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Québec, J2S 7C6, Canada.
J Am Anim Hosp Assoc. 2010 Mar-Apr;46(2):107-14. doi: 10.5326/0460107.
An 11-year-old, 18-kg, neutered male standard schnauzer was presented for evaluation of recurrent otitis externa with para-aural swelling and fistulation of the right external ear canal of 6 months' duration. Otoscopic examination was impossible because of the severe stenosis of the ear canal. Right para-aural ultrasound examination and ultrasound-guided fine-needle aspiration of a mass-like lesion were performed. Cytology was suggestive of a follicular cyst. Magnetic resonance imaging revealed severe ear canal stenosis with a heterogeneous mass in the horizontal portion of the ear canal and associated otitis media. Total ear canal ablation with lateral bulla osteotomy was performed. Histopathological diagnosis was chronic otitis externa associated with multiple follicular cysts confined to the ear canal. Surgical treatment proved curative. This is the first report of multiple follicular cysts originating from the ear canal in a dog.
一只11岁、体重18千克的去势雄性标准雪纳瑞犬因复发性外耳道炎伴耳周肿胀及右外耳道瘘管形成6个月前来就诊。由于耳道严重狭窄，无法进行耳镜检查。对右侧耳周进行了超声检查，并在超声引导下对一个肿块样病变进行了细针穿刺抽吸。细胞学检查提示为滤泡囊肿。磁共振成像显示耳道严重狭窄，耳道水平段有一个不均匀肿块，并伴有中耳炎。遂行全耳道切除术及外侧鼓泡骨切开术。组织病理学诊断为慢性外耳道炎伴局限于耳道的多个滤泡囊肿。手术治疗证明是治愈性的。这是犬耳道起源的多个滤泡囊肿的首例报告。
