Lung hernia, defined as protrusion of pulmonary tissue beyond the normal confines of the thoracic cage, is an unusual clinical entity. We describe radiographic and MDCT findings in a series of six cases. The diagnostic sign of intercostal lung hernia apparent on a chest radiograph and cross-sectional imaging is the detection of lung parenchyma or intra-thoracic contents beyond the rib cage. Multidetector computed tomography (MDCT) allows a detailed study of the underlying anatomy and is helpful in planning further management.
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