肾迷走血管引起肾盂输尿管连接部梗阻

Ureteropelvic Junction Obstruction Produced by Aberrant Vessels

目的：分析12例肾迷走血管造成的肾孟输尿管连接部梗阻的X线表现、讨论肾速走血管的起源及其致病机理，提高贤盂输尿管连接部梗阻的鉴别诊断。材料与方法：以静脉肾益造影为首选检查方法，对其不显影的肾脏可作送行肾盂造影检查。结果：肾孟输尿管连接部带状压迫截断征和输尿管屈曲扭转征是本病的典型征象，还可免患例不同程度的肾积水、肾功能减低或可伴发肾结石。结论：进入肾下极的肾迷走血管很少见，而其中经肾盂输尿管连接部前方入肾下极者是造成该处梗阻的病因，部分的肾迷走动脉可伴有肾速走静脉同行。

Purpose: This article analysed the radiological manifestation of obstruction at ureteropelvic junctionwhich produced by aberrant Vessel of kidney in 12 patients. To discuss the source of the aberrant vesseland the mechanism of the disease, it is helpful to make the differential diagnosis of obstruction atureteropelvic junction. Materials and Methods: The essential examination method was intravenouspyelography. Retrograde pyelograply was suitable for the patient whose kidney was not shown inintravenous pyelography. Results: The 'string like' compression and break at ureteroplvic junction wasone of the main sign of the disease. The another sign was that the local ureter was bent and twisted.Various degrees of hydronephrosis, impairment of renal function of the sick kindney and nepholithus couldalso be seen in the disease. Conclusion: There was rarity of aberrant vessels to be distributed into lowerpole fo the kidney. The vessels those went through in the front of ureterpelvic junction and made itobstructed was the cause of the disease. Sometimes, the aberrant artery could be companied with aberrantvein.