Chronic airspace disease: Review of the causes and key computed tomography findings

Figure 18 Pulmonary alveolar proteinosis. A 35-year-old man who was an active smoker presented with shortness of breath and cough. A and B: Axial (A) and coronal (B) computed tomography of the chest showed smooth thickening of the interlobular and intralobular septal lines, and ground glass opacities, causing crazy paving pattern. Bronchoalveolar lavage confirmed the pulmonary alveolar proteinosis. The patient also had left-sided pneumothorax, with a chest tube in place. Courtesy of Lila Pourzand, MD.