Gaughan E M, Gift L J, Frank R K
Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan 66506.
J Am Vet Med Assoc. 1992 Sep 1;201(5):748-50.
Tubular duplication of the cervical portion of the esophagus was diagnosed in a 10-day-old female Quarter Horse. The foal was examined because of the development of a 12- to 15-cm diameter mass at the caudal aspect of the mandible after suckling. The foal was dyspneic when in lateral recumbency. Radiography and ultrasonography revealed a fluid- and gas-filled mass. Endoscopy revealed a normal-appearing upper airway and esophagus. Complete surgical resection of the mass was successful. The mass had a 3-mm diameter communication with the esophageal lumen at the pharyngoesophageal oriface. Histologic examination revealed stratified squamous epithelium lining the cyst-like cavity. The wall of the mass had circumferential and longitudinal layers of smooth muscle with few submucosal glands. The clinical, gross pathologic, and histopathologic findings were consistent with tubular duplication of the cervical portion of the esophagus.
一匹10日龄的雌性夸特马被诊断为食管颈部管状重复畸形。这匹幼驹因哺乳后在下颌骨尾侧出现一个直径12至15厘米的肿块而接受检查。这匹幼驹侧卧时呼吸困难。放射学和超声检查显示一个充满液体和气体的肿块。内镜检查显示上呼吸道和食管外观正常。肿块的完整手术切除很成功。肿块在咽食管口处与食管腔有一个直径3毫米的连通处。组织学检查显示囊肿样腔内衬有复层鳞状上皮。肿块壁有环形和纵形的平滑肌层，黏膜下腺体很少。临床、大体病理和组织病理学表现与食管颈部管状重复畸形相符。
