Omental Morgagni‐Larrey hernia: An anatomical pictorial essay

Abstract

This paper reports on a case of an omental diaphragmatic hernia revealed during routine anatomical dissection of an obese 85-year-old male with plethoric appearance of the upper body. The hernial mass, with a size of 12 cm x 9 cm, was detected in the anterior mediastinum. It had a long peduncle originating from the transverse colon and passing through the right sternocostal diaphragmatic opening of Morgagni-Larrey. The whole greater omentum was tightly packed and tumid within the serous hernial sac, but without signs of torquation. To our knowledge, this is the first systematic analysis of the omental hernial anatomy by a step-by-step iconography.

Morgagni-Larrey diaphragmatic hernia as cause of intestinal obstruction in a patient with Marfan's syndrome

“…Our case (left anterior congenital diaphragmatic hernia, or Morgagni-Larrey) is, therefore, an entity of exceptional occurrence. The diaphragmatic defect seen in this type of hernia is antero-medially at the junction of the septum transversum of the diaphragm and chest wall (2). The abdominal viscera may not migrate into the chest until late in life, allowing the existence of an asymptomatic diaphragmatic hernia until the development of a complication (3).…”

“…El caso que presentamos (hernia diafragmática congénita anterior izquierda, o de Morgagni-Larrey) es, por lo tanto, una entidad de excepcional incidencia. El defecto diafragmático que se observa en este tipo de hernia es antero-medial en la unión del septum transverso del diafragma y la pared torácica (2). Las vísceras abdominales pueden no migrar al tórax hasta etapas tardías de la vida, posibilitando que la existencia de la hernia diafragmática permanezca inadvertida hasta el desarrollo de alguna complicación (3).…”

Intrathoracic intestinal diverticulum in a late presenting congenital bilateral diaphragmatic hernia: a case report

“…Bochdalek’s hernias represent 90% of cases, and Morgagni’s hernias comprise 2% to 3% [1]. In most cases, diaphragmatic hernias occur on the right side (10:1 ratio, right: left) [2]. When the defect is bilateral it is known as a Morgagni-Larrey type, which represents 0.12% of congenital diaphragmatic hernias [3].…”