title: False negative mitral valve echo in a case of Lutembacher's syndrome.
mesh_terms: D000328:Adult; D004452:Echocardiography; D005188:False Negative Reactions; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis*; D006801:Humans; D008185:Lutembacher Syndrome / Q000175:diagnosis* / Q000503:physiopathology; D008943:Mitral Valve / Q000503:physiopathology*