6-year-old female with tuberous sclerosis. Evaluate for renal angiomyolipomas.EXAMINATION: MRI kidneys without and with intravenous contrast 12/16/2016 8;44 The kidneys contain innumerable subcentimeter cysts. In the left upper pole peripheral renal cortex there is a low signal intensity lesion on the fat saturated sequences without enhancement measuring 6 mm (series 501, image 22; series 1001, image 49) ; this likely corresponds to the hyperechoic lesion seen on previous renal ultrasound. No hydronephrosis. The liver is normal with no focal hepatic lesion. No intra or extrahepatic biliary ductal dilatation. Normal well-distended gallbladder.The spleen is normal.The pancreas is normal with no focal lesion. No pancreatic ductal dilatation.Adrenal glands are normal.The bowel loops are not dilated.Subsegmental atelectasis at the lung bases.Bone marrow signal intensity is normal.The soft tissues are normal.
Bilateral innumerable subcentimeter simple renal cysts. Focal 6 mm low signal intensity lesion on the fat saturated sequences in the peripheral left renal cortex at the upper pole likely represents a small angiomyolipoma corresponding to the hyperechoic lesion seen on previous sonogram.