The purpose of this study was to evaluate 99mTc-SC dynamic imaging for diagnosis of chyluria.Forty-one nake eye chyluria patients who went through cystoscopy were observed.Age ranged from 16-65 a(average 41.7 a).Thirty-three were males and eight females.Bilaterial injection of 3.7×108Bq 99tc-SC was made subcutanously into the inter-toe web

and dynamic imaging was carried out using VG Hawkeye SPECT(GE)．Classification of the imaging:(a)bilateral chyluria kidney:bilateral kidney or renal pelvis was imaged in early dynamic imaging;and(b)unilateral chyluria kidney

which Can be divided into three types:(1)unilateral kidney was imaged in early imaging;(2)only unilateral renal pelvis was shown in early imaging;(3)iliae lymph vessels showed enlargement rapidly on the diseased side.Since 99mTc-SC dynamic imaging is higher sensitive and non-invasive in the diagnosis of chyluria

it is a great help to differential diagnosis for bilateral chyluria kidney or unilateral chyluria kidney

and according to the classification of unilateral chyluria kidney imagings the degree of chyluria can be evaluated.