Megaduodenum is a congenital or acquired dilation and elongation of the duodenum with hypertrophy of all layers that presents as a feeling of gastric fullness, abdominal pain, belching, heartburn, and nausea with vomiting sometimes of food eaten 24 hours prior.Megaduodenum - Merriam-Webster
megaduodenum meaning:[Medicine] n pl -de·na or -de·nums : a congenital or acquired dilatation and elongation of the duodenum with hypertrophy of all layers that presents as a feeling of gastric fullness, epi...megaduodenum перевод:мегадуоденум (резкое увеличение размеров двенадцатиперстной кишки)