What is "tenosynovitis"

Tenosynovitis \Ten`o*syn`o*vi"tis\, n. [NL., fr. Gr. te`nwn a tendon + E. synovitis.] (Med.) Inflammation of the synovial sheath of a tendon.

n. (context pathology English) An inflammation of the fluid-filled sheath (the synovium) that surrounds a tendon.

n. inflammation of the sheath surrounding a tendon

Tenosynovitis is the inflammation of the fluid-filled sheath (called the synovium) that surrounds a tendon. Symptoms of tenosynovitis include pain, swelling and difficulty moving the particular joint where the inflammation occurs. When the condition causes the finger to "stick" in a flexed position, this is called "stenosing" tenosynovitis, commonly known as " trigger finger". This condition often presents with comorbid tendinitis.