What Is a Kidney Cyst? There are different kinds of kidney cysts. A simple kidney cyst is a round pouch of smooth, thin-walled tissue or a closed pocket that is usually filled with fluid. One or more ...

Simple renal cysts (SRC) are commonly observed in human kidneys. 1 There is also an increase in the size and number of cysts over time in cyst-bearing individuals. 2 Although the size and the number ...

A kidney cyst is a fluid-filled sac that develops on one or both of the kidneys. These cysts are round, thin walled and can range in size from microscopic to around 5cm in diameter. They may be ...