PMC4531957_01
Chest P-A on admission shows bilateral interstitial infiltrate with patchy ground-glass opacities.
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The chest radiographs showed multifocal and patchy distribution of opacities in the periphery of both lung zones (Fig. 1).
High resolution computer tomography (HRCT) shows bilateral patchy involvement of alveolar consolidation in mainly both lower lobe and focal ground-glass lesion is also noted.
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High resolutional computed tomographic scan (HRCT) revealed nonsegmental and peribronchial distribution of alveolar consolidation and ground glass attenuation in the subpleural area, predominantly (Fig. 2).
Low power view shows elongated or serpiginous polypoid plugs of fibroblastic tissue filling air spaces (H-E, x 40).
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The section showed well demarcated areas of fibrosis involving air spaces in patchy distribution (Fig. 3).
The air spaces and bronchioles were filled with edema and fibrinous exudate and their lining cells were mostly necrotic or sloughed (H-E, x 100).
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Most bronchiolar lumens or air spaces were filled with fibrinous exudate containing granular eosinophilic necrotic cellular debris (Fig. 4).