Oishi Yasuhisa, Tani Kenji, Itamoto Kazuhito, Haraguchi Tomoya, Taura Yasuho
Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8511, Japan.
Department of Animal Medical Center, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8511, Japan.
Open Vet J. 2018;8(4):485-488. doi: 10.4314/ovj.v8i4.21. Epub 2018 Dec 27.
Agenesis of a hepatic lobe is an extremely rare congenital anomaly and only one dog have been reported in veterinary literature. We encountered a dog with this anomaly diagnosed by Computed tomography (CT) and portography. A two-year-old, 6.9-kg female Shih tzu dog was presented with vomiting and anorexia. The dog had no history of abdominal surgery or trauma. Biochemical analysis showed elevated plasmatic liver enzymes. CT revealed the absence of the liver parenchyma and vascular system of the left lobe, quadrate lobe and papillary process of the caudate lobe. A portosystemic shunt was also observed. The liver parenchyma and vascular system of these lobes were not detected under digital subtraction angiography during laparotomy. Furthermore, the liver parenchyma and vascular system of these lobes were not detected even when the remaining liver volume increased two months after treating the shunt vessel. CT proved itself a good option for antemortally diagnosis of hepatic agenesis in a dog.
肝叶发育不全是一种极其罕见的先天性异常，兽医文献中仅报道过一例犬病例。我们遇到一只通过计算机断层扫描（CT）和门静脉造影诊断出患有这种异常的犬。一只两岁、体重6.9千克的雌性西施犬出现呕吐和厌食症状。该犬无腹部手术或外伤史。生化分析显示血浆肝酶升高。CT显示左叶、方形叶和尾状叶乳头突的肝实质和血管系统缺失。还观察到一个门体分流。剖腹手术期间数字减影血管造影未检测到这些叶的肝实质和血管系统。此外，即使在治疗分流血管两个月后剩余肝脏体积增加，这些叶的肝实质和血管系统仍未检测到。CT证明是犬肝叶发育不全生前诊断的良好选择。
