Haynes P F, Snider T G, McClure J R, McClure J J
J Am Vet Med Assoc. 1980 Dec 1;177(11):1135-42.
Chronic chondritis of the arytenoid cartilage was diagnosed in 7 male Thoroughbred horses examined for obstructive upper airway disorders. The history of the cases was characterized by a 3- to 6-month progression of exercise intolerance and inspiratory dyspnea during exercise. Endoscopy revealed marked asymmetry of the rima glottidis, partial or complete inability to abduct the involved cartilage, and axial displacement of the involved arytenoid cartilage. In less severe cases, the disorder was confused with laryngeal hemiplegia. Focal elevated lesions of the involved cartilage, which were frequently seen, produced contact lesions on the contralateral cartilage. Subtotal arytenoidectomy was performed in 6 cases. Histologic examination of the removed cartilages revealed marked lamination of the cartilage with fibrous connective tissue. Granulating sinus tracts were seen in 3 cases. The surgical intervention resulted in marked improvement of exercise intolerance in 5 cases.
在对7匹因上呼吸道阻塞性疾病接受检查的雄性纯种马进行诊断时，发现了杓状软骨慢性软骨炎。这些病例的病史特点是运动不耐受和运动时吸气性呼吸困难持续3至6个月。内窥镜检查显示声门裂明显不对称，受累软骨部分或完全无法外展，以及受累杓状软骨轴向移位。在病情较轻的病例中，该病症被误诊为喉偏瘫。受累软骨常见的局灶性隆起病变在对侧软骨上产生了接触性病变。6例进行了杓状软骨次全切除术。对切除软骨的组织学检查显示软骨有明显分层，并伴有纤维结缔组织。3例可见肉芽形成的窦道。手术干预使5例运动不耐受情况得到明显改善。
