Grignon A, Filion R, Filiatrault D, Robitaille P, Homsy Y, Boutin H, Leblond R
Radiology. 1986 Sep;160(3):645-7. doi: 10.1148/radiology.160.3.3526402.
A morphologic classification of in utero urinary tract dilatation is presented. Ninety-two hydronephrotic fetal kidneys diagnosed with ultrasound were graded according to the proposed classification. The findings suggest that grade I dilatation (anteroposterior diameter of the renal pelvis less than 10 mm) should be considered normal. Grades II and III constitute an intermediate hydronephrosis, requiring postnatal urologic surgery in nearly half the cases. Grade IV (moderate dilatation of the calyces, with easily identified residual renal cortex) and grade V (severe dilatation of the calyces with atrophic cortex) are clearly pathologic and require neonatal corrective surgery. It is hoped that use of this simple and practical classification will facilitate communication and comparison of results in the literature.
本文提出了一种宫内尿路扩张的形态学分类方法。对92例经超声诊断为肾积水的胎儿肾脏，根据所提出的分类方法进行分级。研究结果表明，I级扩张（肾盂前后径小于10mm）应被视为正常。II级和III级构成中度肾积水，近半数病例需要在出生后进行泌尿外科手术。IV级（肾盏中度扩张，残余肾皮质易于识别）和V级（肾盏严重扩张伴皮质萎缩）明显为病理性，需要进行新生儿矫正手术。希望使用这种简单实用的分类方法将有助于文献中结果的交流和比较。
