Kedar R P, Collins C D, Cosgrove D O
Department of Ultrasound, Royal Marsden Hospital, Sutton, Surrey, UK.
Br J Radiol. 1994 Jun;67(798):596-8. doi: 10.1259/0007-1285-67-798-596.
Various pitfalls in diagnosing early hydronephrosis on ultrasound (US) have been recognized. We present a case where the appearances on US mimicked bilateral hydronephrosis in a patient undergoing treatment for recurrent colonic carcinoma. Comparison with a previous ultrasound examination demonstrated marked loss of renal sinus fat. Doppler studies demonstrated normal venous flow within each portion of the "dilated collecting system". In oncology, renal cachexia should be remembered as one of the causes of pseudo-hydronephrosis.
超声（US）诊断早期肾积水存在多种陷阱。我们报告一例正在接受复发性结肠癌治疗的患者，其超声表现类似双侧肾积水。与之前的超声检查相比，显示肾窦脂肪明显减少。多普勒研究表明，“扩张的集合系统”各部分内静脉血流正常。在肿瘤学中，应记住肾恶病质是假性肾积水的原因之一。
