Sample collection
tumor
TUMOR
During the study, samples of peripheral blood, tumor tissue/implant, and peritoneal washing cytology (PWC) will be collected from the patients included in the study. Samples will be collected pre-treatment (at the time of the initial SL) and post-treatment (at the second SL). All samples will be stored in a freezer at a temperature of −80°C, for later study of biomarkers.