Solitary trunk from the right ventricle with a cleft mitral valve simulating the trifoliate left valve of an atrioventricular septal defect with common atrioventricular junction.
We report a case of a true cleft in the anterior leaflet of the mitral valve. The cleft, however, is directed toward the ventricular septum, and the left ventricular papillary muscles have the same arrangement as seen in the setting of a common atrioventricular orifice. The atrioventricular septum is intact. This appearance reflects the presence, in this patient, of right ventricular origin of a solitary arterial trunk, so that there was no outflow tract within the left ventricle to interpose between the mitral valve and the septum.
Sharratt
Geoffrey P
GP
Department of Pediatrics and Cardiology, Isaac Walton Killam Health Centre, and Dalhousie University, Halifax, Nova Scotia, Canada.
Anderson
Robert H
RH
D000015:Abnormalities, Multiple / Q000175:diagnosis* / Q000601:surgery; D001344:Autopsy; D006348:Cardiac Surgical Procedures / Q000379:methods; D017809:Fatal Outcome; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis* / Q000601:surgery; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007231:Infant, Newborn; D008943:Mitral Valve / Q000002:abnormalities*; D018570:Risk Assessment; D013771:Tetralogy of Fallot / Q000175:diagnosis* / Q000601:surgery