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Case Report: Megaesophagus and Persistent Left Cranial Vena Cava in a Dog

病例報告:犬之巨食道及永存性左前大靜脈

摘要


一歲半的雄性西施犬從六個月大時就一直會有食後反逆的情形,經由放射線影像、開胸探查術及屍體解剖確定病患有巨食道症及永存性左前大靜脈(正常動物左前大靜脈應退化)。永存性左前大靜脈並且和左鎖骨下動脈一起壓迫食道,造成食道因食物堆積形成一個囊袋狀結構,似本例的異常結構而造成犬反逆的病例極為罕見。

並列摘要


A 1.5 year old, sexually intact male Shih-Tzu dog was presented for a one-year history of constant regurgitation after feeding. Megaesophagus and persistent left cranial vena cava (PLCVC) was diagnosed based on radiography, exploratory surgery, and autopsy. The cranial esophagus was compressed by the PLCVC and the left subclavian artery to form a dilated precardial pouch. This multiple abnormalities contributing to persistent regurgitation is very rare in the dog.

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