It's not clear what causes simple kidney cysts. One theory suggests that kidney cysts develop when the surface layer of the kidney weakens and forms a pouch (diverticulum). The pouch then fills with fluid, detaches and develops into a cyst.
July 18, 2012
- Taal MW, et al. Brenner & Rector's The Kidney. 9th ed. Philadelphia, Pa.: Saunders Elsevier; 2011. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-1-4160-6193-9..C2010-1-67932-1--TOP&isbn=978-1-4160-6193-9&uniqId=321553651-265. Accessed June 7, 2012.
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- Simple kidney cysts. National Kidney and Urologic Diseases Information Clearinghouse. http://kidney.niddk.nih.gov/kudiseases/pubs/cysts/index.htm. Accessed June 7, 2012.
- Eknoyan G. A clinical view of simple and complex renal cysts. Journal of the American Society of Nephrology. 2009;20:1874.
- Tanagho EA, et al. Smith's General Urology. 17th ed. New York, N.Y.: The McGraw-Hill Companies; 2008. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=21. Accessed June 7, 2012.
- Skolarikos A, et al. Conservative and radiological management of simple renal cysts: A comprehensive review. British Journal of Urology International. In press. Accessed June 13, 2012.
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