Correct!
1. The chest radiograph shows a diffuse linear, interstitial pattern

The frontal chest radiograph shows a prominent linear pattern throughout the lungs, involving the central perihilar areas but also quite prominent in the peripheral lung parenchyma. The heart also appears enlarged. No large pleural effusion is present (trace left pleural liquid is possible) and no multifocal consolidation is evident. The widening of the superior mediastinum is vascular in nature; no mediastinal mass is present. A nodular pattern is not evident.

1. The chest radiograph shows interlobular septal thickening
2. The chest radiograph shows Kerley’s B lines
3. The chest radiograph shows peripheral basal reticulation
4. 1 and 2
5. 2 and 3

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