abnormal foregut morphology MP:0000474 MPheno.ontology any structural anomaly of the anterior portion of the primitive digestive tube of the embryo that lies cephalic to the junction of the yolk stalk, consists of endodermal tissue, and gives rise to the pharynx, lower respiratory system, esophagus, stomach, duodenum proximal to the biliary tract, liver, pancreas, biliary tract, and gall bladder foregut abnormalities foregut dysplasia abnormal digestive system development