[Pleural exudate as presentation of constrictive pericarditis].

An exudative pleural effusion is a very infrequent form of presentation of constrictive pericarditis, and it can induce diagnostic difficulties. We present a 71 year-old woman with a pleural effusion attributed to be due to congestive heart failure which does not respond to the treatment. The pleural fluid had biochemical characteristics of an exudate. The echocardiographic study showed severe constrictive pericarditis, and after the pericardectomy the pleural effusion completely resolved. The diagnostic suspicion of constrictive pericarditis in cases of exudative pleural effusion is of special interest because an specific and effective treatment is available.