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Alternative names Return to top
Biopsy - carpal tunnelDefinition Return to top
Carpal tunnel biopsy is a diagnostic procedure in which a small portion of tissue is removed from the carpal tunnel (part of the wrist).How the test is performed Return to top
The skin of your wrist is scrubbed and injected with a local anesthetic, which numbs the area. Through a small incision, a sample of tissue is removed from the carpal tunnel (by direct removal of tissue or needle aspiration).
Sometimes this procedure is performed at the time of carpal tunnel release.
How to prepare for the test Return to top
Fasting may be advised for a few hours before the test.How the test will feel Return to top
You may feel some stinging or burning when the local anesthetic is injected. You may also feel some pressure or tugging during the procedure. Afterward, the area may be tender or sore for a few days.
Why the test is performed Return to top
This test may be performed when the diagnosis of amyloidosis is suspected in a patient with symptoms consistent with carpal tunnel syndrome.
Normal Values Return to top
No abnormal tissues are found.What abnormal results mean Return to top
Amyloidosis involving the carpal tunnel.What the risks are Return to top
Special considerations Return to top
If the biopsy indicates abnormalities of the carpal tunnel, your health care provider may suggest the carpal tunnel release procedure and/or further surgery to address the abnormality.
Update Date: 1/15/2003 Updated by: Andrew L. Chen, M.D., M.S., Department of Orthopaedic Surgery, Hospital for Joint Diseases, New York, NY. Review provided by VeriMed Healthcare Network.
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Page last updated: 28 October 2004 |