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Extrapleural Inner Thoracic Wall Lesions: Multidetector CT Findings  

Kim, Seung-Soo (Department of Radiology, Soonchunhyang University Cheonan Hospital)
Kim, Young-Tong (Department of Radiology, Soonchunhyang University Cheonan Hospital)
Jou, Sung-Shik (Department of Radiology, Soonchunhyang University Cheonan Hospital)
Publication Information
Journal of the Korean Society of Radiology / v.63, no.3, 2010 , pp. 225-233 More about this Journal
Abstract
The extrapleural space is external to the parietal pleura in the thorax. The structures within and adjacent to this region include the fat pad, endothoracic fascia, intercostal muscles, connective tissue, nerves, vessels, and ribs. Further, the space is divided into the inner and outer thoracic wall by the innermost intercostal muscle. Extrapleural lesions in the inner thoracic wall are classified as air-containing lesions, fat-containing lesions, and soft tissue-containing lesions according on their main component. Air-containing lesions include extrapleural air from direct chest trauma and extrapleural extension from pneumomediastinum. Prominent extrapleural fat is seen in decreased lung volume conditions, and can also be seen in normal individuals. Soft tissue-containing lesions include extrapleural extensions from a pleural or chest wall infection as well as tumors and extrapleural hematoma. We classify extrapleural lesions in the inner thoracic wall and illustrate their imaging findings.
Keywords
Thoracic Wall; Pleura; Tomography, X-Ray Computed;
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