title: Unmasking the origin of a pseudo-left atrial mass.
authors.forename: J W
authors.initials: JW
authors.lastname: Tam
authors.forename: K L
authors.initials: KL
authors.lastname: Chan
mesh_terms: D003937:Diagnosis, Differential; D004452:Echocardiography; D006325:Heart Atria / Q000000981:diagnostic imaging; D006331:Heart Diseases / Q000000981:diagnostic imaging*; D006551:Hernia, Hiatal / Q000000981:diagnostic imaging*; D006801:Humans