The authors described a case of hernia of Morgagni-Larrey in aged patients with an acute sub-occlusive symptomatology. This type of diaphragmatic hernia is uncommon and characterized by an aspecific symptomatology which realize different problems in children and adult patients, in whom diagnosis can be made incidentally, executing analysis for other pathologies. Using Marlex mesh to repair hernia represents an improvement of surgery, because it enables to repair a great hernia with a better result, and no recurrence.