This week we delve into the world of fetal cardiology to review a recent work on mild aortic stenosis in fetal life. This is a rare finding and the outcomes of this varied. How commonly does this finding result in severe or critical aortic stenosis? Is there a risk for hypoplastic left heart syndrome? Are there findings that would auger and better or worse outcome for this observation? How should patient families be counseled when encountering this finding on a fetal scan? Associate Professor of Pediatrics at Stanford University, Dr. Michelle Kaplinski shares her deep insights this week.