Which of the following clinical conditions has the subsequent radiographic manifestations? Chest radiography: multiple small and large parenchymal cysts; linear streaks of air extending to the mediastinum; perivascular halos from air collections; intraseptal air; subpleural cysts; salt-and-pepper appearance
A. asthma
B. lung overdistention?C. pulmonary interstitial emphysema
D. pneumomediastinum
?ANS: D
A. Incorrect response: See explanation D.
B. Incorrect response: See explanation D.
C. Correct response: Pulmonary interstitial emphysema (PIE) has the following radiographic characteristics: multiple small and large parenchymal cysts; linear streaks of air extending to the mediastinum; perivascular halos from air collections; intraseptal air; subpleural cysts; salt-and-pepper appearance.
D. Incorrect response: See explanation D.
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