A Case of Acquired Brown's Syndrome Caused by Tenosynovitis

ABSTRACT

Brown's syndrome is characterized by inability to elevate the adducted eye and positive forced duction test. It is known as congenital disease but may occur as acquired disease Acquired Brown's syndrome may occur after superior oblique muscle tucking, frontal sinusitis, surgery of frontal sinus or orbit, scleral buckling, and inflammation in trochlear area. Brown's syndrome caused by inflammation of trochlear area is frequently combined with rheumatoid arthritis. The ocular motiliy is improved after systemic corticosteroid treatment or local injection of corticosteroid in trochlear area. An llyear old korean girl was found to have bilateral aquired Brown's syndrome caused by tenosynovitis. There were severe limitation of elevation in adduction and resistance in forced duction test in both eyes. The ocular motility was improved after local injection of dexamethasone in trochlear area.