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Figure 2 Valve Phenotype in HLHS Probands

All aortic valves were both dysplastic and hypoplastic. Aortic valve morphology (A, B) showing the effective orifice of an anterior posterior bicuspid aortic valve (arrows, A) and unicommissural unicuspid aortic valve (arrows, B) in the parasternal short axis. Right-sided valve involvement (C, D) showing dysplasia of the tricuspid (arrows, C) and pulmonary (arrow, D) valves in the apical 4-chamber and parasternal long axis, respectively. Abbreviations as in Figure 1.