Foreign body induced synovitis of 1st metatarso-phalangeal joint.
Thorn injury to great toe - 1 mth. C/o local swelling. Referred for Ultrasound to rule out / localize foreign body.
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4 - 5 mm sized linear echogenic focus ( foreign body - thorn ) is seen embedded in thickened synovium of 1st metatarso-phalangeal joint. It is on dorsal aspect. Synovial hypervascularity is noted.
No tenosynovitis / tendon tear.
Findings favour foreign body ( thorn ) induced synovitis of joint.
Surgery - Foreign body at site mentioned by ultrasound - embedded in thickened synovium. Fluid in joint contained pus flakes.