In X-ray, loops of bowel on the left side of hemithorax and shift of heart shadow -
Eventration of diaphragm
Foramen of bochdalek hernia
Morgagni's hernia
Any of the above
Certain malformations result in the defect in the diaphragm which allows the abdominal organs to push into the chest with mediastinal shift to the opposite side.
Such defects are a Bochdalek hernia, Morgagni's hernia and Diaphragmatic eventration.