I am a 38 years old male who also has a hyperdense cyst in the left kidney
. Mine is 1.8cm.
It was detected last October during an MRI scan
. After that I have had 2 CTs and one MRI and there was no change in the cyst, which means the cyst is stable.
Hyperdense cysts are atypical kidney cysts which in CT has higher hounsfield unit measurements (>20). The important thing is to make sure they don't enhance after contrast administration. If they do, then surgical approach is taken.