pleural mesothelioma diagnosispleural mesothelioma prognosisbiapical pleural parenchymalpleural mesothelioma cancerbiapical pleural thickeningpleural plaques mesotheliomapleural mesothelioma centermalignant pleural mesothelioma cancerminimal biapical pleural thickeningbiapical pleural scarringbiapical pleural parenchymal scarringmésothélium pleural