title: Abnormal P waves and an intracardiac mass.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006338:Heart Neoplasms / Q000473:pathology; D006346:Heart Septum / Q000473:pathology*; D006801:Humans; D006984:Hypertrophy / Q000503:physiopathology; D008067:Lipoma / Q000473:pathology