Figure 6b. Case 2. Initial nonenhanced transverse helical chest CT scans. (a) Enlarged hyperattenuating right hilar (lateral arrow) and azygoesophageal recess (medial arrow) adenopathy are shown. (b) Edema of mediastinal fat and bilateral pleural effusions are present. (c) Peribronchial thickening and air-space disease are more severe than in case 1.