62-year-old male with history of renal cysts. ABDOMEN:LIVER, BILIARY TRACT: No significant abnormality noted.SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Multiple cystic lesions are present bilaterally.Left kidney:Left mid pole posterior partially exophytic cystic lesion with thin septations and layering high T1 signal measuring 3.9 x 3.5 cm (image 26 of series 9). No enhancement. This may represent a proteinaceous or hemorrhagic cyst.Left midpole anterior exophytic cystic lesion without septations or nodularity measuring 4.7 x 6.9 cm (image 31 of series 9). No enhancement. This likely represents a simple cyst.Exophytic left inferior pole T2 intermediate lesion without enhancement significantly decreased in size now measuring 4.0 x 3.9 cm (image 46 of series 9). No enhancement. This likely represents a resolving cyst.Right kidney:Multiple small complex and simple cysts. For reference, a right lower pole complex lesion has not significantly changed from prior and measures 1.9 x 1.2 cm (imaged 62 of series 110)RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
1. Right cystic renal lesions, some of which have decreased in size, likely benign.2. Multiple simple and complex left renal cystic lesions for which followup is recommended. 