Close
  Indian J Med Microbiol
 

Figure 1: Technetium-99m Ethylene cysteine (Tc-99m EC) scan of patient performed after intravenous injection of 3 mCi of Tc-99m EC and 10mg of Lasix as F+0 protocol. The dynamic images were acquired till 20 minutes followed by post-void and delayed static image till 2 hours. It showed enlarged right kidney with good perfusion and radiotracer uptake and obstructive drainage pattern. The right ureter was dilated and tortuous in its course. The left kidney appeared smaller in size compared to right kidney contrary to USG findings which showed bilateral enlarged kidneys. Possibility of left duplex system was raised with upper moiety showing good function and non-obstructed drainage and non-functioning lower moiety with no radiotracer uptake till the end of the study. The other causes of this discrepancy in size on renal scan and USG can be renal cyst, benign or malignant mass and renal calculi. The problem in diagnosis of renal masses is common on USG[5]

Figure 1: Technetium-99m Ethylene cysteine (Tc-99m EC) scan of patient performed after intravenous injection of 3 mCi of Tc-99m EC and 10mg of Lasix as F+0 protocol. The dynamic images were acquired till 20 minutes followed by post-void and delayed static image till 2 hours. It showed enlarged right kidney with good perfusion and radiotracer uptake and obstructive drainage pattern. The right ureter was dilated and tortuous in its course. The left kidney appeared smaller in size compared to right kidney contrary to USG findings which showed bilateral enlarged kidneys. Possibility of left duplex system was raised with upper moiety showing good function and non-obstructed drainage and non-functioning lower moiety with no radiotracer uptake till the end of the study. The other causes of this discrepancy in size on renal scan and USG can be renal cyst, benign or malignant mass and renal calculi. The problem in diagnosis of renal masses is common on USG<sup>[5]</sup>