Aspiration pneumonia

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Imaging studies

Plain films

• AP portable chest images may demonstrate bilateral opacities in the middle or lower lung zones.
• On PA and lateral images, the opacities may be localized to the posterior segments of upper lobes or to the superior segments of lower lobes.

CT

• Aspirated low-density organic material such as mineral oil in the tracheobronchial tree or alveolar spaces cannot be diagnosed on plain radiographs, but they can be demonstrated and perhaps measured on CT scans.
• Opaque aspirates are also well demonstrated on CT scans.

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See also

• Dysphagia
• Meconium aspiration syndrome
• Nosocomial pneumonia