The mediastinum is divided into anterior, middle, and posterior regions, subdivided into superior and inferior regions (Fig. 3.1). We see the outline of the mediastinum because structures are adjacent to other structures of differing radiodensity. This is generally soft tissue against air.
Keywords
Hiatus Hernia Hilar Region Duplication Cyst Thoracic Aortic Aneurysm Posterior Mediastinum
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© Springer-Verlag London Limited 2009