iatal (or hiatus) hernia
a hernia of part of the stomach into the opening in the diaphragm through which the esophagus passes

One of the most famous medical cases of the twenties was that of Alice Jane McHenry - "the girl
with the uspide down stomach " who made the Truesdale Clinic in Fall River, MA, famous for a
short time. A large defect in the diaphragm allowed her stomach to be up between her l;ungs.