Peritoneal carcinomatosis is a common event in the natural history of colorectal and other digestive tract cancers. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) provides a promising therapeutic option for highly selected patients with peritoneal carcinomatosis arising from different malignancies such as colorectal cancer, gastric cancer, ovarian cancer, or peritoneal mesothelioma with improvement of both patient survival and quality of life. CRS, i.e., removal of all visible metastatic abdominal and pelvic disease with peritonectomy along with HIPEC (for 90 min at a temperature of 42º C) and/or early postoperative intraperitoneal chemotherapy (EPIC) in order to eradicate all microscopic metastasis.