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[|Human|] I HAVE RECENTLY HAD A CT DONE THAT SHOWED A LOW ATTENTUATION NODULE ON MY KIDNEY. THE SIZE IS 1.9cm X 1.3 cm AND IT CONTAINS A CALCIFICATION IN THE POSTERIOR WALL.. SHOULD I BE CONCERND WITH THIS? WHEN I WAS LITTLE I HAD FREQUENT UTI S, IM NOT SURE IF IT HAS ANY THING TO DO WITH EACH OTHER.
[|AI|]  Hi, Thanks for writing in. A low attenuation nodule in the kidney means that there is a small area containing fat or fluid of the 1.9 cm x 1.3 cm. The presence of calcification needs to be evaluated with the confirmation of whether it is fluid containing cyst or a fat containing tumor. Fat containing renal tumors are usually benign and considered as angiomyolipomas on imaging modalities. Some cases of renal cell carcinoma have been reported. Since the size is small and without knowing about the fat or fluid content, it is difficult to specifically confirm the diagnosis. It is best to get a review ultrasound scan after 3 months to monitor any increase in size. If it grows faster than it needs a biopsy confirmation of diagnosis. It is not related to your frequent Otis in childhood.