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Fig. 5 | Orphanet Journal of Rare Diseases

Fig. 5

From: Assessing the criteria for definition of perimembranous ventricular septal defects in light of the search for consensus

Fig. 5

The left hand panel shows another defect viewed from the left ventricle with fibrous continuity postero-inferiorly between the leaflets of the mitral and tricuspid valves, incorporating the atrioventricular component of the membranous septum along with a remnant of the interventricular component forming a membranous flap. The muscular outlet septum, however, which is deviated caudally into the subaortic outflow tract, interposes between the leaflets of the aortic and tricuspid valves. When viewed from the right ventricle (right hand panel), it is difficult to appreciate that the defect opens to the right ventricular outlet, being cephalad relative to the medial papillary muscle

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Orphanet Journal of Rare Diseases

ISSN: 1750-1172