Figure 7.

A 47-year-old man who presented with rapidly progressive dyspnea after an airway infection. Computed tomography scan showing diffuse pulmonary opacities, with a consolidative component in the dependent regions and ground-glass opacities in the non-dependent regions. No specific pathogenic agent was identified, and the histopathology demonstrated a pattern of diffuse alveolar damage. The final diagnosis was acute interstitial pneumonia, one of the rare idiopathic interstitial lung diseases.