Hi and thanks for the query, I do not think its really a moment to worry about pyloric stenosis. Pyloric stenosis is generally characterized by increased quantity in the quantity of amniotic fluid. There are also other indirect ultrasound findings generally associated with this condition. I would suggest you spend about two weeks and get the next ultrasound or get the opinion, as you rightly put it, of another ultrasound specialist. But for now, absence of excessive amniotic fluid as main report of echographic report make pyloric stenosis unlikely. This however also depends on a ny past history of this condition in the family. Thanks and kind regards, Bain LE, MD