- Patients will undergo surgery called extrapleural pneumonectomy which involves removal of the lung, the lining of the lung, the covering of the heart, and the muscle that separates the chest and abdomen. At the conclusion of the resection, if the patient has less then 1 cm3 of residual gross disease in one or more areas, then the heated chemotherapy lavage will begin. If more than this volume of disease is present, then the patient will receive additional treatment off-study.