Suppurative extensor tenosynovitis of the extensor carpi ulnalis tendon sheath.

Suppurative tenosynovitis of the flexor tendons has been reported frequently, and its diagnosis and treatment are well established.(1-6) However, suppurative tenosynovitis of the extensor tendons is a rare entity that has been infrequently reported in the English literature. Reported cases were usually nonlocalizedand atraumatic and occurred in immunocompromised patients. In this article, we report a case of isolated suppurative extensor tenosynovitis of the extensor carpi ulnaris tendon sheath in a healthy individual and review the literature, anatomy, and treatment.