Figure 18
The free wall of the right ventricle has been lifted from the septal surface to show the features of tetralogy of Fallot with double chambered right ventricle due to anomalous apical septoparietal trabeculations (red asterisks). The ventricular septal defect is perimembranous. The yellow arrow marks the exit from the apical portion of the right ventricle to the subpulmonary outflow tract. Note the dysplastic and rudimentary leaflets of the pulmonary valve.