Fig. 5From: A case of pulmonary adenocarcinoma showing rapid progression of peritoneal dissemination after immune checkpoint inhibitor therapyHistopathological findings of peritoneal autopsy specimens. a Hematoxylin and eosin staining of the peritoneal tissue revealed an invasive, well-differentiated adenocarcinoma (100Ă— magnification). b 22C-3 antibody staining against programmed death-ligand 1. Tumor proportion score, 12%Back to article page