Is small renal cyst dangerous?

Hi,

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I have read your query and the first thing to know about a single kidney cyst is that it is usually harmless. You have not mentioned if this was an incidental finding (usually they are) or are you experiencing any symptoms like dull flank pain or abdominal pain or problems with voiding urine? In case of former, no need to do anything and get an ultrasound every six months to see if the cyst enlarges. In case of latter, or if size is increasing, two options exist but conservative management with medicines will only provide short term relief. Surgical intervention is the only long term solution. That said, considering your age you are a candidate for MODY (maturity onset diabetes of the young) especially if you have a family history of diabetes. Also, if on any later ultrasound you find more than one cyst polycystic kidney disease or even Wegner's might have to be taken in to account. For now, you need to get the following tests done: HbA1C (glycated hemoglobin), CBC (complete blood count) and U/CE (urea and electrolytes). Follow up with the test results and also do elaborate on why was ultrasound done and what were your symptoms for proper future management. Thank you and take care.