Congenital eventration of hemidiaphragm in an adult.

Congenital diaphragmatic eventration is a common condition in infancy but is a rare anomaly in an adult. The muscle is permanently elevated, but keeps its continuity and attachments to the costal margins, which differentiates diaphragmatic eventration from diaphragmatic hernia. We describe a case of congenital eventration of the left diaphragm in a 35-year-old male who underwent successful surgical repair.