In this preliminary study, we compared control women and Type 2 diabetes mellitus (DM) women for the prevalence and type of renal damage as revealed by technetium-99m dimercapto-succinic acid (Tc-99m DMSA) renal scan. Methods. A total of 20 control women and 60 women with Type 2 DM received Tc-99m DMSA renal scan were included in this study. The 60 women with Type 2 DM were separated into three groups: 20 women without UTI history, 20 patients with cystitis histories only, and 20 with pyelonephritis histories. Results. All of the control women had normal Tc-99m DMSA renal scan findings. However, 38.3% of Type 2 DM women had abnormal Tc-99m DMSA renal scan findings. Type 2 DM women without UTI history had no abnormal scan findings. The prevalence of abnormal renal scan findings was significantly higher in Type 2 DM women with pyelonephritis (90.0%) than with cystitis alone (25.0%). Renal scar findings were found only in Type 2 DM women with pyelonephritis (40.0%). Conclusions. Compared with control women, women with Type 2 DM, especially if they had UTI and pyelonephritis histories, have a significantly higher prevalence of abnormal Tc-99m DMSA renal scan findings.
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