Fig. 1
From: Malignant mesothelioma in situ: morphologic features and clinical outcome
(Case 1): a Typical appearance of mesothelioma in situ as a single layer of innocuous-appearing cuboidal mesothelial cells. b Loss of BAP1 in the flat mesothelium. c MTAP staining shows a mixture of apparent loss with areas of retained staining. d Invasive mesothelioma that developed at 36 months
