<prompt> Which one of the following is not a feature of congenital hyperophic pyloric stenosisMore common in malesProjectile vomitingDiarrheaMalnutrition  <response>: Congenital hyperophic pyloric stenosis is a proximal type of intestinal obstruction, so it results in absolute constipation in which neither flatus or faeces is passed. Reference SRB 5 th edition page no:821 