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Figure 13: Anatomic images from different hearts show how perimembranous defects, defined because of fibrous continuity between the leaflets of the aortic and tricuspid valves, can extend to open into the outlet of the right ventricle (arrow) without (left hand panel) or with (right hand panel) malalignment of the muscular outlet septum

Figure 13: Anatomic images from different hearts show how perimembranous defects, defined because of fibrous continuity between the leaflets of the aortic and tricuspid valves, can extend to open into the outlet of the right ventricle (arrow) without (left hand panel) or with (right hand panel) malalignment of the muscular outlet septum