My father recently had his routine usg scan and we found a 78mm cyst on his left kidney. Though it's type 1 we are still a bit worried as the previous report (done in Aug 2024) didn't mention anything about the cyst and suddenly this time we found it. Can you kindly check the previous scan and let me know if it had the cyst in the scan and the radiologist somehow missed it? I'm attaching both the new and old scan pictures for your reference. He doesn't have any discomfort and he's on medication due to the residual urine issue.