Peritoneal carcinomatosis is one of the most common routes of dissemination of colorectal cancer (CRC). It is encountered in 7% of patients at primary surgery, while it develops in about 4% to 19% of patients after curative surgery and in up to 44% of patients with recurrent CRC. Peritoneal involvement from colorectal malignancies has been considered traditionally as a manifestation of terminal disease, due to limited response to conventional surgical and chemotherapeutic treatments. In the past few years the introduction of cytoreductive surgery combined with hyperthermic intraperitoneal chemoperfusion has shown promising results in selected patients. Currently, the surgical management of peritoneal surface malignancies of colonic origin with this combined locoregional therapy has resulted in a significant improvement in survival of these patients. However, further controlled studies will help to standardize indications and the technique of this locoregional therapy in order to achieve an improvement of morbidity and mortality rates.