Zhang Bowen, Fu Mengzhu, Zhang Di, Jin Yipeng, Liu Gang
Department of Clinical Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, China.
Medical Imaging Department, China Agricultural University Veterinary Teaching Hospital, Beijing, China.
Front Vet Sci. 2023 Jan 4;9:1013230. doi: 10.3389/fvets.2022.1013230. eCollection 2022.
Retrocaval ureter is a rarely reported congenital malformation of the caudal vena cava in veterinary medicine. In this report, a 2-year-old exotic shorthair cat weighing 3.4 kg was presented for depression and loss of appetite. Laboratory findings was unremarkable. Abdominal radiography revealed right renomegaly, and ultrasonography suggested right ureterohydronephrosis. Right retrocaval ureter was recognized by computed tomography. An antegrade pyelography was performed to identify the localization of obstruction and whether obstruction was complete or partial. Complete right ureteral stenosis was confirmed through right antegrade pyelography on computed tomography. The cat underwent right nephroureteroectomy and recovered well after surgery. This is the first report of successful diagnosis and treatment of retrocaval ureter in a cat with significant clinical and imaging signs, using ultrasonographically guided percutaneous antegrade pyelography and multimodal imaging such as radiography, ultrasonography, and computed tomography.
腔后输尿管是兽医医学中一种罕见报道的尾腔静脉先天性畸形。在本报告中，一只2岁、体重3.4千克的异国短毛猫因精神沉郁和食欲不振前来就诊。实验室检查结果无异常。腹部X线摄影显示右肾肿大，超声检查提示右输尿管肾盂积水。通过计算机断层扫描识别出右腔后输尿管。进行了顺行肾盂造影以确定梗阻的部位以及梗阻是完全性还是部分性。通过计算机断层扫描上的右顺行肾盂造影证实了右侧输尿管完全狭窄。这只猫接受了右肾输尿管切除术，术后恢复良好。这是首例使用超声引导下经皮顺行肾盂造影以及X线摄影、超声检查和计算机断层扫描等多模态成像技术，成功诊断和治疗具有明显临床和影像学体征的猫腔后输尿管的报告。
