Suppurative extensor tenosynovitis caused by Staphylococcus aureus.

Suppurative tenosynovitis is a rare infection, occurring almost exclusively in the flexor tendon sheath as a posttraumatic event. We report the case of a systemically ill woman with suppurative tenosynovitis of the extensor tendons caused by Staphylococcus aureus. Early recognition of this unusual infection may prevent unnecessary morbidity.