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Imaging study from Case 1. A: Conventional chest radiograph with diffuse interstital pattern. B: High-resolution-CT (HRCT) featuring small pleural effusions and partial atelectasis of the right lower lobe in addition to distinctive ground-glass opacities. C: Fiberoptic bronchoscopy image showing a vulnerable tracheobronchial mucosa with multiple spontaneous bleeding stigmata, consistent with generalized tracheobronchial inflammation.
