uick. These, of course, are all pathological changes which could be discovered byordinary physical methods of examination. Although the Rontgen screen shows the level of the effusion two fingersbreadth higher than the limit obtained by percussion, this is very frequentlyobserved, so that the… … Fig. 165.—Pyopneumothorax. There is an inspiratory ascending and an expiratory descending movement of thesurface level. Various explanations of these phenomena have been suggested. I am disposedto think that the inspiratory dilatation of the right pleural cavity, by raising thepressure in the…
X-rays · Radiography
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