15-year-old boy with history of tuberous sclerosis on Afinitor, evaluate angiomyolipoma. ABDOMEN:LIVER, BILIARY TRACT: The partially visualized liver appears normal. The gallbladder is normal. No intra or extrahepatic biliary duct dilatation identified.SPLEEN: The partially visualized spleen is normal.PANCREAS: The pancreas appears normal and there is no pancreatic duct dilatation.ADRENAL GLANDS: The adrenal glands appear normal.KIDNEYS, URETERS: Innumerable round lesions are seen bilaterally. Most of these lesions are subcentimeter, T1 hypointense, T2 hyperintense, and do not enhance. Some of these lesions are T2 hypointense but are too small to accurately characterize. Overall, the number of these lesions has decreased compared to the prior examination. The reference right renal lesion (series 501, image 16) measures 12 x 11 mm, previously 8 x 7 mm. This lesion demonstrates uniform T1 hypointensity, T2 hyperintensity, no enhancement, and no evidence of macroscopic fat on in- and out- of phase imaging. The reference left renal lesion is no longer visualized.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: The partially visualized small bowel and colon are normal.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
1.Innumerable lesions in the kidneys bilaterally, most of which are subcentimeter cysts and some of which are new. 2.Slight increase in size of reference right renal lesion.