Kidney Cysts, Simple

Tuesday, July 01, 2008 Article by: D.K. Mangusan Jr., PTRP

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What are kidney cysts?

Kidney cysts (SISTS), also known as renal cysts, are abnormal fluid-filled sacs that form in the kidneys. There are several types of kidney cysts, but the most common is a simple kidney cyst. Unlike the cysts that form in people with polycystic kidney disease, which is inherited, simple kidney cyst is not an inherited disorder. It becomes more common as people age. According to the National Kidney and Urologic Diseases (NIDDK), nearly 30 percent of people over the age of 70 have at least one kidney cyst. However, its cause is not fully understood.

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