title: Chest x-ray quiz. Why would this patient be breathless? Large left pleural effusion compressing, and hence collapsing the left lung, with more blood being delivered into the right pulmonary circulation.
authors.affiliation: St. Vincent's Hospital, Sydney and Australian Catholic University, North Sydney.
authors.forename: Marea
authors.initials: M
authors.lastname: Reading
mesh_terms: D003937:Diagnosis, Differential; D004417:Dyspnea / Q000209:etiology*; D006801:Humans; D010996:Pleural Effusion / Q000150:complications / Q000000981:diagnostic imaging*; D011652:Pulmonary Circulation; D013902:Radiography, Thoracic