Answer:
A hiatus hernia is a disorder in which a portion of the stomach protrudes into the lower chest due to a weakening diaphragm.
Step-by-step explanation:
The majority of hiatus hernias are discovered by chance during a routine chest x - ray or CT scan. Hiatus hernia might present on a radiographic as a retrocardiac bulge with or without air liquid surface. Because the gastric fundus was seen to be moved across the diaphragm, it was diagnosed as a retrocardiac tumour. Hiatus hernia is indicated by the presence of air liquid in this mass.