04 October 2021
: Case report 
Chronic Pleuritis and Recurrent Pleural Effusion After Atezolizumab for Small Cell Lung Cancer
Unknown etiology, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Adverse events of drug therapy, Clinical situation which can not be reproduced for ethical reasons
Julie Lin1ABCDEF, Bruce Fernando Sabath1ABCDEFG*DOI: 10.12659/AJCR.933396
Am J Case Rep 2021; 22:e933396
Figure 2. (A) H&E stain of parietal pleural biopsy showing lymphoid infiltration (arrowhead) and reactive mesothelial hyperplasia (arrow) consistent with chronic pleuritis (100×). (B) H&E stain of parietal pleural biopsy showing mesothelial hyperplasia (arrows) with eosinophilic infiltrate (arrowheads) (400×).