PS-01-015 Calretinin, CK5/6, TTF-1, CEA, Ber-EP4, and CD15: A useful combination of immunohistochemical markers for differentiating pleural mesothelioma from pulmonary adenocarcinoma N. Gursan * , M. Calik, E. Demirci, S. Sipal, B. Gundogdu, C. Gundogdu * Ataturk University, Medical Faculty, Erzurum, Turkey