The four cases presented herein exemplify a previously unrecognized manifestation of spontaneous pneumothorax showing exuberant type 2 pneumocyte hyperplasia. Focally, this proliferation was ...

Scores were assigned for inflammatory infiltration density, alveolar type 2 pneumocyte hyperplasia, bronchial-bronchiolar epithelial hyperplasia and alveolar wall thickening and fibrosis in ...

Scant neutrophils and eosinophils were present. There was marked type 2 pneumocyte hyperplasia with prominent nucleoli and multinucleation (Figure 1), as well as scattered mitotic figures (some ...

“To the author’s knowledge, this is the first report of hyaline membrane formation and type II pneumocyte hyperplasia in feline SARS-CoV-2 infection, which are classic characteristics of human ...

and type II pneumocyte hyperplasia (arrowheads) consistent with ARDS. C. Immunohistochemistry identifying SARS-CoV-2 infected cells (green, arrows) within the lung. Bar = 100um.