Among the upper urinary tract calculi, ureteral calculi was the most common (13/27) , and the nephrolithiasis accompanied ureteric stone was the next (9/27) , but the stones only lodged in renal collecting system was the least (5/27 ) .

• 结石中输尿管结石所占比例最高(13/27)，其次为同时有输尿管结石和肾结石(9/27)，单纯肾结石最少(5/27)。