Chemothorax: a rare cause of a transudative pleural effusion.

We discovered a rare cause of pleural effusion, chemothorax. In this case, a patient with invasive ductal breast carcinoma was admitted for a large and symptomatic pleural effusion. The radiology report obtained prior to admission did not describe the location of the Infuse-a-Port catheter. After a bedside thoracentesis demonstrated results consistent with chemotherapy infusate in the pleural space, further review of the medical imaging demonstrated that the catheter was in the pleural space. 2015 BMJ Publishing Group Ltd.