PMC8515295_01
High-resolution computed tomography findings. Chest computed tomography revealed wide-ranging ground-glass attenuation and reticulation with traction bronchiectasis. Ground-glass attenuation was distributed mainly in the peripheral areas and partially along with the bronchovascular bundles.
gr1.jpg
PMC8515295_01_gr1.jpg
fig1
In addition, there were cystic spaces in the ground-glass opacities (Fig. 1).
Histological findings of the lung (hematoxylin and eosin staining). (A) Macrophages are widely accumulated in the alveolar space (Scale bar = 1mm). (B) Thickening of the alveolar walls by fibrous tissue can be observed, showing a uniform appearance (Scale bar = 200mum). (C) Type II alveolar epithelial cells have proliferated, and alveolar macrophages with abundant eosinophilic cytoplasm, eosinophils, and neutrophils have accumulated in the alveolar spaces (Scale bar = 50mum).
gr2.jpg
PMC8515295_01_gr2.jpg
fig2
The alveolar and interlobular septa were infiltrated with inflammatory cells (Fig. 2).