What causes parenchymal cyst in kidney?
Patient: Hello. I recently had a CT bc I felt something on my liver. It turned out to be a hemangioma. In the report it also mentions a subcentimeter parenchymal cyst in my right kidney. No one even mentioned it. Does that mean it isn´t important_ I have never had a kidney cyst before. Doctor: Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.  Kidney cysts are absolutely harmless and are incidentally detected during ultrasound or CT scan. They wont cause any harm and doesn't require any treatment. You can go for a followup scan after one year to check whether the cyst has increased in size or not.  Hope I have answered your query. Let me know if I can assist you further. Regards,      Dr. Shinas Hussain