Rapid development of sarcoid tenosynovitis.

We report a case of acute tenosynovitis from sarcoidosis and review previously reported cases of this entity. A woman with known pulmonary sarcoidosis rapidly developed painless nodules in the tendon sheaths of the dorsum of both hands and wrists. Sarcoid tenosynovitis is almost exclusively found in the upper extremity. The flexor and extensor tendons are equally affected. The condition may respond to medical therapy including corticosteroids and other immunomodulating medications. Surgical debulking and tendon sheathectomy have also been curative. The disease has also been reported to spontaneously resolve. Our patient dramatically improved while on methotrexate.