Acute bilateral pleural effusions in ankylosing spondylitis

Abstract

Ankylosing spondylitis (AS) is a chronic seronegative spondyloarthritis associated with the major histocompatibility antigen HLA B27. Apical pleural thickening in ankylosing spondylitis is common in association with apical fibrobullous disease. Pleural disease is otherwise rare. Here, we present a case of bilateral pleural effusion in 38 years old man with ankylosing spondylitis.