Simple Renal Cysts

Simple renal cysts are fluid-filled sacs that form in the kidney tissue. They are not malignant and are frequent. They are typically spherical or oval, have thin walls, and are filled with clear fluid. Simple cysts don't have septa, calcifications, or solid parts like complex cysts do. We don't know exactly what causes them, but they are generally linked to getting older and are more common in people over 50.

Most simple renal cysts don't cause any symptoms and are found by accident during imaging tests like ultrasounds, CT scans, or MRIs done for other reasons. In rare situations, big cysts can produce symptoms including flank pain, stomach pain, blood in the urine (haematuria), or elevated blood pressure.

Imaging is usually used to confirm a diagnosis. This procedure helps tell the difference between minor cysts and more complicated or possibly cancerous kidney abnormalities. Most of the time, you don't need treatment until the cyst hurts, is infected, or blocks anything. In certain situations, it might be a beneficial idea to do things like aspiration with sclerotherapy or laparoscopic cystectomy.
Simple renal cysts usually have a favourable prognosis and don't change how well the kidneys work as a whole. Monitoring with periodic imaging tests could be beneficial to ensure that the cyst's size or structure does not change over time.