肾迷走血管引起肾盂输尿管连接部梗阻

目的:分析12例肾迷走血管造成的肾盂输尿管连接部梗阻的X线表现,讨论肾迷走血管的起源及其致病机理,提高肾盂输尿管连接部梗阻的鉴别诊断。材料与方法:以静脉肾盂造影为首选检查方法,对不显影者可作逆行肾盂造影检查。结果:肾盂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典型征象,还可见患侧不同程度的肾积水,肾功能减低或可伴肾结石。结论:肾下极的迷走血管很少见,而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迷走静脉。

Ureteropelvic Junction Obstruction Caused by Aberrant Vessels

Purpose: To analyse the radiological manifestation of obstruction at uretropelvic junction which caused by aberrant vessel of kidney in 12 patients. To discuss the source of the aberrant vessl and the mechanism of the disease. To increase the differential diagnostic ability of obstruction at ureteropelvic junction. Materials and Methods: The essential examination method is in-travenous pyelography. Retrograde pyelograply is suitable for the patient whose kidney was not shown in the intravenous pyelography. Results; The "string like" compression and break at ureteropelvic junction is one of the main sign of the disease. The other sign is that the local ureter was bent and twisted. Different degrees of hydronephrosis, impairment of renal function of the sick kidndy and nepholithus can also be seen in these cases. Conclusion; It is less to seen that aberrant vessels be distributed into lower pole of the kidney. That vessels which go through in the front of ureteropelvic junction and make it obstructed is the cause of the disese. Sometimes, the aberrant artery can be companied with aberrant vein.