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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What does simple cortical cyst right kidney, benign prostato megaly with insignificant post void residue indicate?

I am 67 years old man.I am having mild back pain on right side of spinal curvature.Sonography findings are (i) simple cortical cyst right kidney and (ii) benign prostato megaly (grade I) with insignificant post void residue - prostrate size 4.9x3.4x2.9 cm (wt.26.5 gms). Pl advise,
Wed, 26 Feb 2014
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Urologist 's  Response
Simple cortical cysts are very common after the age of 40 years. At your age, it is a normal finding. Small cysts do not cause any pain. Occasionally large cysts can cause flank pain.
Grade I prostatomegaly can also be considered a normal finding at your age. If you have any symptoms like poor urine flow, increased frequency of urination, urgency or getting up at night to pass urine, then it needs to be evaluated further. Insignificant post void residue means that there was no significant amount of urine in your bladder after you passed urine i.e. you are emptying the bladder completely. This is a good sign which implies that prostatomegaly is not causing much obstruction to your urine flow.
I can guide you further once you mention the size of the cyst.
If the cyst is small (e.g. less than 3 cm), then you need to be evaluated for spine and muscle related problems.
Wish you a speedy recovery and good health,
Dr. Raguram.
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