Morgagni hernia presenting as a right middle lobe compression.

A 25-year-old woman with a history of chronic bronchitis since age 12 and 3-4 previous episodes of pneumonia presented to the emergency room with cough and shortness of breath. A CT scan of her chest revealed findings consistent with Morgagni hernia with herniation of omental fat, causing near complete compressive atelectasis of the right middle lobe. The diaphragmatic defect was successfully treated with a laparoscopic repair. The patient was discharged home on the first postoperative day after tolerating regular diet.