title: A simple method to differentiate postoperative pericardial fluid from cardiac enlargement.
mesh_terms: D006348:Cardiac Surgical Procedures / Q000009:adverse effects; D006332:Cardiomegaly / Q000000981:diagnostic imaging*; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D010490:Pericardial Effusion / Q000000981:diagnostic imaging*; D011859:Radiography