Fetus with HLHS with MA/AA with a large thrombus in the left ventricle.  The left ventricle appears echobright consistent with endocardial fibroelastosis.  There is flow turbulence across the atrial septum (blue color Doppler jet). 

This is a fetus with HLHS with mitral and aortic atresia (MA/AA). 

This is a fetus with HLHS with mitral stenosis and aortic atresia (MS/AA). 

This is a fetus with HLHS with mitral stenosis and aortic stenosis (MS/AS).

Brain sparing physiology in middle cerebral artery in fetus with HLHS.