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Carpal tunnel biopsy How the Test is Performed:
The skin of your wrist is scrubbed and a local anesthetic is injected. A small incision may be made in the skin. A small sample of tissue is removed from the carpal tunnel (by direct removal of tissue or needle aspiration ).
How to Prepare:
Fasting may be advised for a few hours before the test.
Infants and children:
The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:
How it Feels:
There may be some stinging or burning when the local anesthetic is injected. Some pressure or tugging may be felt during the procedure. Afterward, the area may be tender or sore for a few days.
Risks:
- infection (a slight risk any time the skin is broken)
- bleeding
- damage to the nerve in this area
Why this Test is Performed:
This test may be performed when amyloidosis is suspected and when symptoms include carpal tunnel syndrome .
Normal Values:
No abnormal tissues are found.
Abnormal Results:
Amyloidosis involving the carpal tunnel .
Cost:
The estimated cost is $313.
Special Considerations:
Not applicable.
Carpal tunnel syndrome is becoming more frequently recognized and may be occurring more often. It may result from repetitive motion or the use of devices like computer keyboards. It affects the median nerve, the nerve that supplies feeling and movement to the thumb and "thumb-side" of the hand.
This picture shows the normal appearance of an adult's palm and fingers.
This picture shows a normal flexed hand. The tendons that move the fingers and are associated with carpal tunnel syndrome are visible just below the wrist.
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