Morgagni hernia was first defined by Giovanni Morgagni in 1761. It is the least common type of diaphragmatic hernia. Morgagni hernias are typically located on the right. Patients are usually asymptomatic and are often diagnosed coincidentally after a chest radiograph. When they do occur, symptoms are nonspecific and can include abdominal pain, chest pain and dyspnea. A diaphragmatic defect causing the hernia to pass through the thorax can also cause compression of omental vascular structures and omental infarction. In this study, we aim to present chest radiography and computerized tomography (CT) findings of a patient with Morgagni hernia and an associated omental infarction. Morgagni hernia should be considered in the differential diagnosis when chest radiographs show an area of increased opacity in the right cardiophrenic angle. Besides the typical findings suggestive of Morgagni hernia on CT, the formation of a large cake-like hyperdense mass and changes due to inflammation indicate the possibility of a developing omental infarction.
Keywords: Hernia, infarction, Morgagni, omental