Figure 8From: Tetralogy of Fallot and atrial septal defect in a white Bengal Tiger cub (Panthera tigris tigris)Sagittal section through the right ventricle (RV). A significantly hypoplastic pulmonary trunk (PT) demonstrates markedly reduced pulmonary arterial blood flow (arrow). Note the compressive effect (stenosis) of a hypertrophic proximal interventricular septum (star) on the pulmonary trunk (PT). Overriding aorta (A). Ventricular septal defect (VD). Right atrium (RA).Back to article page