Ganglion cysts

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Tests and diagnosis

By Mayo Clinic staff

During the physical exam, your doctor may apply pressure to the cyst to test for tenderness or discomfort. He or she may try to shine a light through the cyst to determine if it's a solid mass or filled with fluid.

Your doctor might also recommend imaging tests — such as X-rays, ultrasound or magnetic resonance imaging (MRI) — to rule out other conditions, such as arthritis or a tumor. MRIs and ultrasounds also can locate hidden (occult) cysts.

A ganglion cyst diagnosis may be confirmed by aspiration, a process in which your doctor uses a needle and syringe to draw out (aspirate) the fluid in the cyst. Fluid from a ganglion cyst will be thick and clear or translucent.

References
  1. Sheon RP, et al. Ganglia and nodules. http://www.uptodate.com/index. Accessed Oct. 30, 2012.
  2. Frontera WR, et al. Essentials of Physical Medicine and Rehabilitation: Musculoskeletal Disorders, Pain, and Rehabilitation. 2nd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/das/book/body/208746819-6/0/1678/0.html. Accessed Oct. 30, 2012.
  3. Ferri FF. Ferri's Clinical Advisor 2013: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-08373-7..00002-9&isbn=978-0-323-08373-7&about=true&uniqId=343863096-23. Accessed Oct. 30, 2012.
  4. Ganglion cysts. American Society for Surgery of the Hand. http://www.assh.org/Public/HandConditions/Pages/GanglionCysts.aspx. Accessed Oct. 30, 2012.
  5. Amadio PA (expert opinion). Mayo Clinic, Rochester, Minn. Nov. 6, 2012.
DS00767 Jan. 8, 2013

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