Fig. 1.

(A) Chest radiography on admission reveals decreased permeability of the right lung. (B) Chest computed tomography (CT) on admission shows diffuse infiltrative shadows and ground-glass opacity in the right lung, and mild ground-glass opacity in the left lung. The shading is particularly severe in the right upper lobe. (C) Chest radiography on admission to the intensive care unit (ICU) reveals that the permeability has further deteriorated. (D) Chest CT on admission to the ICU shows deterioration of diffuse infiltrative shadows and ground-glass opacity in the right lung; however, aeration of the left lung is well maintained.