Asakawa M, Kubodera T, Okamura Y, Habara K, Ito H
Kaibogaku Zasshi. 1989 Jun;64(3):206-9.
Five cases of the double renal pelvis and ureter were encountered among 340 cadavers for dissection practice. Number of minor calices and their surface area in these kidneys were calculated, and causal relationship to abnormal organogenesis was discussed. These 5 cases were formal exclusively in consist of males; 4 right sides and 1 left side, 2 complete duplications and 3 partial duplications. The 5 cases were divided into 2 groups by the number and surface area of minor calices in upper and lower pelvises as follows: 1) The number and surface area of minor calices in the upper pelvis and the lower pelvis were respectively equivalent to the mean value of those in one normal kidney (case 1). 2) The sum of the number and surface area of minor calices in the upper and those in the lower pelvises were equivalent to the mean value of those in one normal kidney (case 2-5). These cases give useful criteria for classification of the double renal pelvis and ureter.
在340具用于解剖实习的尸体中，发现了5例双肾盂及双输尿管病例。计算了这些肾脏的肾小盏数量及其表面积，并讨论了与异常器官发生的因果关系。这5例均为男性，右侧4例，左侧1例，完全重复2例，部分重复3例。根据上下肾盂肾小盏的数量和表面积，将这5例分为2组：1）上肾盂和下肾盂肾小盏的数量和表面积分别相当于一个正常肾脏的平均值（病例1）。2）上肾盂和下肾盂肾小盏的数量与表面积之和相当于一个正常肾脏的平均值（病例2 - 5）。这些病例为双肾盂及双输尿管的分类提供了有用的标准。
