Commonest site of Morgagni hernia: (A) Right anterior, (B) Right posterior, (C) Right anterior, (D) Left posterior
Answer is A. Morgagni hernias are related to maldevelopment of the embryologic septum transversum and to failed fusion of the sternal and costal fibrotendinous elements of the diaphragm. These hernias are generally asymptomatic and usually detected as incidental findings on radiographs.