Thickman D, Mintz M, Arger P, Coleman B
J Comput Assist Tomogr. 1984 Aug;8(4):801-3. doi: 10.1097/00004728-198408000-00047.
In the CT evaluation of a cystic pelvic mass it is important to identify the urinary bladder and assess its relationship to the mass. Although this is generally an easy task, we have encountered cases where delayed opacification of the bladder created diagnostic difficulties. Following intravenous contrast medium infusion, patients with normal renal function may have unopacified bladders due to (a) delayed transit from kidney to bladder and (b) rapid CT imaging of the bladder before opacification can occur. If one is aware of these problems, diagnostic dilemmas may be reduced by obtaining delayed scans of the pelvis or by obtaining postvoid films. Two cases are presented to illustrate these points.
在对盆腔囊性肿块进行CT评估时，识别膀胱并评估其与肿块的关系很重要。虽然这通常是一项简单的任务，但我们遇到过一些病例，膀胱延迟显影造成了诊断困难。静脉注射造影剂后，肾功能正常的患者可能会出现膀胱未显影的情况，原因如下：（a）从肾脏到膀胱的传输延迟；（b）在膀胱显影前就进行了快速CT成像。如果了解这些问题，通过获取盆腔延迟扫描或排尿后影像，可减少诊断难题。现介绍两例以说明这些要点。
