title: Computed tomography of water-like densities mimicking pericardial effusion in a case of a pericardial tumor.
mesh_terms: D003937:Diagnosis, Differential; D006338:Heart Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009236:Myxosarcoma / Q000000981:diagnostic imaging*; D010490:Pericardial Effusion; D010496:Pericardium / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed