title: Brown's syndrome. An unusual manifestation of rheumatoid arthritis.
abstract: Two patients presented with an ocular complication of rheumatoid arthritis that was extraocular in location. Clinical manifestations include vertical diplopia, an intermittent nature, a clicking sensation, and apparent inferior oblique palsy. A stenosing tenovaginitis of the superior oblique tendon and its sheath is the probable underlying pathologic mechanism.
mesh_terms: D000328:Adult; D001171:Arthritis, Juvenile / Q000150:complications; D001172:Arthritis, Rheumatoid / Q000150:complications*; D004172:Diplopia / Q000209:etiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D009801:Oculomotor Muscles; D013285:Strabismus / Q000209:etiology*; D013577:Syndrome