Aspiration pneumonia x-ray findings may be seen in the gravity-dependent portions of the lungs (affected by patient positioning). The classic finding is an infiltrate in the right lower lobe, but aspiration pneumonia also has characteristic distributions based on patient positioning at the time of the aspiration event. The right lung is affected twice as often as the left lung. In recumbent patients, the findings are in the posterior segments of the upper lobes; and, in upright patients, the basal segments of the lower lobes are often affected.
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Cite this: Michael Stuart Bronze. Fast Five Quiz: How Much Do You Know About Pneumonia? - Medscape - Feb 16, 2016.