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CT urography showed small left renal calculus, bilateral renal cyst, right extra renal pelvis. What does it indicate?

CT Urography:( CTU)16/7/2012 Findings: Both kidneys are normal in size and shape. Bio polar length of the right is 10.7cm and left kidney is 9.7cm. there is a calculus seen at the lower pole of the kidney measures approximately 0.4cm. A cortical cyst seen in the mid pole of the left kidney measures 2.2 x 2.4cm. No calculi seen at the right kidney. Extra renal right renal pelvis noted. A small cyst noted in the upper pole of the right kidney measures 0.9 x 1.0cm. No hydronephrosis bilaterally. Both ureters are normal. No ureteric calculus. Urinary bladder is fully distended with a normal outline. No bladder calculus seen. Impression: 1. Small left renal calculus. 2. Bilateral renal cyst . 3. Right extra renal pelvis.
Asked On : Mon, 30 Jul 2012
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Urologist 's  Response
Good Day!

1. Calculus in lower pole - you have a stone on the lower pole of your left kidney, it is a small stone 0.4 cm and can be treated medically for stone dissolution. It is too small to be treated surgically or on any invasive procedure. I would suggest drinking plenty of water for the size not to increase.

2. Cortical cysts - cortical cyst or simple cyst are not clinically significant. it does not cause pain nor does it become cancer. No need to be worried about this finding.

3. Extra renal pelvis - extra renal pelvis means that you were born with the tube that connects your kidney to your urinary bladder developed outside the kidney. It is a normal variant and does not have an clinical consequence.

Thank You.
Answered: Tue, 10 Sep 2013
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