Congenital Morgagni hernia.

In 1769, Giovanni Battista Morgagni, an Italian anatomist described an anterior retrosternal diaphragmatic defect that occurs between the xiphoid process of the sternum and the costochondral attachments of the diaphragm. It results from failure of muscle tissues to spread over the area during embryologic development and constitutes less than 2% of reported diaphragmatic defects.1 Since the space is covered by pericardium on the left, abdominal contents more commonly herniate through the defect on the right side.2 We describe one such rare case of Morgagni hernia occurring on the left side in a 28 year old male patient who was initially managed as a case of pulmonary tuberculosis.