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Anteromedial subcostosternal defects, also known as a diaphragmatic hernia of Morgagni (MH), allow potentially life-threatening herniation of the abdominal organs into the thorax. Constituting only a small fraction of all types of congenital diaphragmatic hernias, correct diagnosis of MH is often delayed, owing in large part to nonspecific associated respiratory and gastrointestinal complaints. Once identified, the primary management for both symptomatic and incidentally discovered asymptomatic cases of MH are surgical correction because the herniated contents present increasing risk for strangulation. Various thoracic and abdominal surgical approaches have been described without a clear consensus on preference for operative repair technique. In this article, the literature regarding management of MH within the past decade is reviewed, and an illustrative case of laparoscopic repair of a MH with novel reinforcement using a Falciform ligament onlay flap is presented.