Marcello Deraco MD is currently Director of the Peritoneal Surface Malignancies Unit at the Fondazione IRCCS Istituto Nazionale dei Tumori Milano-Italy and Co-Director of the European School for Peritoneal Surface Oncology (ESPSO). He is the President of SITILO: (Italian Society for Loco Regional Cancer Therapy) and Member of the Executive Board of PSOGI (Peritoneal Surface Oncology Group International), IART (Italian Association for Rare Tumors) and the Secretary GIMe (Italian Mesothelioma Group). Member of several scientific societies as SSO (Society of Surgical Oncology), ESSO (European Society of Surgical Oncology) and SICO (Italian Society of Surgical Oncology).Honorary Member of Mexican Society of Surgical Oncology (SMeCO) and Israelian Society of Surgical Oncology (ISSO).