23-year-old male patient with history of tuberous sclerosis, evaluate for angiomyolipoma.EXAMINATION: MR renal protocol with and without contrast. ABDOMEN:LIVER, BILIARY TRACT: Layering gallstones noted without evidence of cholecystitis.SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Reference exophytic lesion in the left mid kidney (series 501 image 21) currently measures 1.7 x 1.8 cm, previously 2.7 x 2.7 cm and now has a more discrete region of T2 hypointensity compared to prior examination. This lesion does not demonstrate enhancement and does not contain fat on in and out of phase images.A lesion in the mid/inferior pole of the left kidney again demonstrates fat on in and out of phase imaging and currently measures 2.0 x 1.3 cm (series 401 image 22).Multiple T1 and T2 hypointense lesions are noted in the kidneys bilaterally, which may represent hemorrhagic cysts. Many T2 hyperintense renal cysts are noted bilaterally, measuring up to 2.3 cm in the inferior pole of the right kidney, unchanged.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.Exophytic lesion in the mid left kidney has decreased in size compared to prior examination and does not contain fat. Recommend continued follow up of this lesion.2.Angiomyolipoma in the mid/inferior pole of the left kidney is unchanged in size.3.Numerous bilateral renal cysts.4.Cholelithiasis.