prepyloric atresia pyloric atresia; congenital membranous obstruction of the gastric outlet, with vomiting of gastric contents only. pulmonary atresia congenital severe narrowing or obstruction of the pulmonary orifice, with cardiomegaly, reduced pulmonary vascularity, and right ventricular atrophy.
There are four types atresia found for this disease of jejunoileal atresia. Each type of atresia occurs due to different causes. Type-1 Intestinal Atresia: In this case, a membrane gradually forms inside of the intestine when the baby is in its mother’s womb.