Felman A H, Walker R D
Rev Interam Radiol. 1977 Apr;2(2):101-4.
Five patients are reported with uretropelvic obstruction and hydronephrosis in which the renal pelvis is predominantly involved. Because of the extrarenal position of the pelvis in these patients, its dilatation is apt to cause distortion and displacement of the calyces and infundibulae simulating an intrarenal mass. Calyceal and infundibular dilatation is much less apparent and general renal outline and cortical thickness is better preserved in these patients than in those with classical hydronephrosis. Careful attention to radiographic technique including delayed films, ultrasonography and occasional arteriography should prevent any confusion with a solid mass lesion.
报告了5例肾盂输尿管梗阻和肾积水患者，其中肾盂受累为主。由于这些患者肾盂位于肾外，其扩张容易导致肾盏和肾盂漏斗部变形和移位，类似肾内肿块。与典型肾积水患者相比，这些患者的肾盏和肾盂漏斗部扩张不太明显，肾脏轮廓和皮质厚度保留得更好。仔细注意包括延迟片、超声检查和偶尔的动脉造影在内的放射学技术，应可避免与实性肿块病变混淆。
