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腔静脉后输尿管(Retrocaval ureter)是下腔静脉胎生生发过程异常而形成的泌尿系先天性畸形。输尿管环绕腔静脉走行,所以又称为环绕腔静脉输屎管,由于输尿管向内偏斜,又称偏斜输尿管;这种输尿管位置的异常并非输尿管本身的变异,而是因胚胎时期下腔静脉发育异常所致,最合适的名称应为输尿管前下腔静脉。1893年Hochstettes在尸解中首先发现,1935年Kimbrogh首次报告临床病例并手术治疗,1940年Harrill最先术前确诊。 一、病因及发病情况 下腔静脉后输尿管是胚胎时期主静脉系统演变异常而成。输尿管处于下腔静脉后面,在下腔静脉和腹主动脉之间穿过,并绕越下腔静脉前方,然后再经其外方转向下方而进入膀胱。自1893年起,欧美文献已有近200例报告,部分为尸解发现。我国于1935年首次报道,迄今
Retrocaval ureter is a congenital malformation of the urinary tract caused by an abnormal process of procreation of the inferior vena cava. Ureteral walking around the vena cava, it is also known as fecal tube around the inferior vena cava, due to the deviation of the ureter inward, also known as oblique ureter; ureter is not the location of the abnormal changes in the ureter itself, but because of the embryo during the inferior vena cava Due to abnormal development, the most appropriate name should be before the ureter of the inferior vena cava. In 1893, Hochstettes first discovered in the autopsy that Kimbrogh first reported clinical cases in 1935 and was surgically treated. In 1940 Harrill was the first to confirm the preoperative diagnosis. First, the etiology and incidence of inferior vena cava after the embryo during the evolution of the main venous system is abnormal. The ureter is located behind the inferior vena cava and passes between the inferior vena cava and the abdominal aorta and around the front of the inferior vena cava, then down to the bladder via its outer side. Since 1893, almost 200 reports have been published in European and American literature, some of them were found in autopsy. Our country first reported in 1935, so far