【摘要】 目的　研究肾外肾盂的影像表现和鉴别诊断。方法　回顾分析 18例肾外型肾盂的影像表现 ,其中CT 15例 ,MRI 3例 ,逆行肾盂造影 2例和静脉肾盂造影 1例。结果　全部均在CT或MRI轴位扫描中 ,表现为在肾窦外囊样水密度影和长T1长T2信号。CT增强时造影剂均匀充盈。其中双侧 2例 ,单侧 16例。结论　掌握肾外型肾盂的影像特点 ,能将其与肾盂积水和肾盂旁囊肿等相鉴别。更多还原

【Abstract】 Purpose To study the features of extrarenal pelvis and differential diagnosis.Methods The imaging festures of extrarenal pelvis, in CT of 15 cases, MRI of 3 cases, RP of 2 cases and IVP of 1 case, were studied retrospectively. Results All cases showed a cystic mass beside the renal sinus on CT or MRI axial scan, water density or long T1/T2 signal intensity, with filling the contrast on enhanced CT, double side of 2 cases, single side of 16 cases. Conclusion The extrarenal pelvis has some characteristic imaging signs, by which is possible to differentiate from parapelvis cyst and hydro pyelosis.更多还原