Second and third extensor compartments

What does "Second and third extensor compartments" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.

Explanation

"Second and third extensor compartments" refers to specific areas in the wrist. These compartments are like tunnels that contain tendons, which are the tough fibers that connect muscles to bones. The second and third compartments specifically contain the tendons that help in moving the wrist and fingers. When the document mentions "fluid reflective of tenosynovitis in the second and third extensor compartments", it means there is swelling in these areas due to inflammation of the tendon sheath, a protective layer around the tendon.

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