Hello welcome to HCM
Renal cysts is a fluid collection in the kidney
. The Majority of renal cysts are benign and can be monitored without any treatment. However some are malignant and have to be removed by surgery.
simple renal cysts are found frequently in the elderly.
The renal cysts has been classified into five categories by Bosniak
Category I: benign simple cyst
without septa, calcification or solid component.
Category II:Benign cyst
with few thin septa and contain fine clacifications
Category IIF: Well marginated with a number of thin septa with thick nodular calcification and >3cms in size.
Category III: Indeterminate cystic masses with thick septa with enhancement.
Category IV: Malignant cystic masses with thick septa with enhancement and irregular margins
Sometimes a CT scan
is needed to distinguish between simple and malignant cyst
Pain in the cyst may be due to haemorrhage or abscess
with in the cyst or it enlarges to compress other organs.
The pain you might be having may be due to some other cause as it is on left side too or due to UTI
Get your urine checked.
Hope i have answered all your querie.
wish you Good Health