<prompt> Which of the following is not evaluated using 99mm Tc- DMSA scintigraphy?Renal anomaliesRenal pseudomassRenal scarringRenal artery stenosis  <response>: Ans DDMSA scan is used to study renal morphology thus out of given options only renal artery stenosis is not a renal morphological defect. Renal artery stenosis is studied by Captopril-DTPA scan 