De Quervain tenosynovitis
Right wrist radial aspect pain - few months. No trauma.
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Hypoechoic soft tissue thickening around EPB (extensor pollicis brevis) tendon at distal end of radius. This thickening shows hypervascularity. Tendon is round in shape due to constriction from all around. Tendon is intact with normal echopattern.
There is no significant sheath thickening around APL (abductor pollicis longus) tendon. Tendon shows ovoid shape in cross section contrast to EPB tendon. Tendon is intact with normal echopattern.
Middle aged female presents with non-traumatic onset of pain on radial aspect of wrist for last few months. Ultrasound findings favour De Quervain's tenosynovitis affecting EPL (extensor pollicis brevis) tendon.