Aspiration, atelectasis, and pneumonitis on CT scan and radiography

A frontal radiograph (A) shows an almost complete white-out of the right chest (asterisk) with mediastinal shift (arrow). Image B is a CT scan showing aspirated material in the right mainstem bronchus (arrowhead), an interstitial process in remaining aerated lung (arrow), and infiltrates in the middle and lower lobes (asterisks). Image C is a magnified view showing aspirated material in the mainstem and middle lobe bronchi (arrowheads) and an interstitial process in the aerated lung (arrow).