De Quervain's tenosynovitis involves inflammation of the tendon located at the base of which structure?

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Multiple Choice

De Quervain's tenosynovitis involves inflammation of the tendon located at the base of which structure?

Explanation:
De Quervain's tenosynovitis is an inflammatory issue of the tendon sheaths at the base of the thumb, where the abductor pollicis longus and extensor pollicis brevis tendons pass through the first dorsal (radial) compartment of the wrist. This location explains the typical symptoms: pain and tenderness at the radial side of the wrist near the base of the thumb, especially with thumb movement or pinching. The other options point to joints far from this tendon region (elbow, ankle, knee cap), which are not involved in this condition.

De Quervain's tenosynovitis is an inflammatory issue of the tendon sheaths at the base of the thumb, where the abductor pollicis longus and extensor pollicis brevis tendons pass through the first dorsal (radial) compartment of the wrist. This location explains the typical symptoms: pain and tenderness at the radial side of the wrist near the base of the thumb, especially with thumb movement or pinching. The other options point to joints far from this tendon region (elbow, ankle, knee cap), which are not involved in this condition.

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