Flexor tendon tenosynovitis - index finger
Index finger pain and swelling at the palmar aspect radial side.
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Distension of the index finger flexor tendons sheath by fluid signal intensity located at zone III.
Fluid signal around the forth extensor compartment (common extensor digitorum) at the level of the wrist.
Fluid signal around the fifth extensor compartment (extensor digit minimi) from the level of wrist down to the level of the metacarpophalangeal joint.
The recent patient referred to us with a history of chronic index finger pain and swelling along the palmar aspect of second metacarpal bone for 6 months without obvious trauma. Regarding the imaging findings, index finger flexor tendon and extensor digitorum tendons (fourth and fifth extensor tendon compartments) tenosynovitis is the main diagnosis. Rheumatoid factor was negative.