Fig. 6From: The anatomical compartments and their connections as demonstrated by ectopic airUnilateral secondary spontaneous pneumothorax in a 69-year-old man with silicosis, and extensive emphysematous changes in lungs, with bullae. Axial CT scan depicts air spread in the mediastinum as a continuum space, and subcutaneous planes after percutaneous drainage of pneumothorax (chest tube not shown)Back to article page