Thank you for your medical query at AskTheDoctor.com
I understand your concern.
This data needs to be evaluated with your RFT values and symptoms. A cortical scarring can be present in normal individuals due to any previous kidney infection, and even a cortical cyst can be an incidental finding.
In fact, most adults will have a few cysts which care benign.
So, if you want to know more, you can initiate a query stating the symptoms, and the RFT values.
Hope this was helpful,
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