Hepatic herniation through a Morgagni foramen defect was diagnosed as a cardiac tumor, suggested initially by angiocardiography. Subsequent selective hepatic arteriography and isotopic scintiphotography established the correct preoperative diagnosis. When visceral herniation through a Morgagni defect does not include gas-filled bowel, preoperative diagnosis requires isotopic or arteriographic studies of the liver.
Korobkin MT, Miller SW, deLorimier AA, Gordon LS, Palubinskas AJ. Hepatic Herniation Through the Morgagni Foramen. Am J Dis Child. 1973;126(2):217-219. doi:10.1001/archpedi.1973.02110190191017