Distinct Patterns of Colorectal Peritoneal Metastases at Initial and Repeat Cytoreductive Surgery

Area of Science:

• Oncology
• Surgical Oncology

Background:

• Colorectal cancer (CRC) incidence is rising in Western countries, with over 3 million new cases annually.
• Hematogenous spread to the liver and transcoelomic dissemination to the peritoneum are common metastatic routes for CRC.
• Colorectal peritoneal metastases (CRPM) affect 5%-8% of patients at diagnosis and 10%-20% upon recurrence.

Purpose of the Study:

• To highlight the significance of colorectal peritoneal metastases (CRPM) as a critical aspect of colorectal cancer progression.
• To emphasize the role of cytoreductive surgery (CRS) in managing CRPM.

Main Methods:

• Review of current epidemiological data on colorectal cancer incidence and metastatic patterns.
• Analysis of treatment outcomes for colorectal peritoneal metastases (CRPM), focusing on cytoreductive surgery (CRS).

Main Results:

• Colorectal cancer (CRC) shows increasing rates, necessitating effective management strategies for metastatic disease.
• Colorectal peritoneal metastases (CRPM) represent a significant challenge, impacting a substantial percentage of patients.
• Cytoreductive surgery (CRS) is established as the gold-standard for locoregional control in selected CRPM cases.

Conclusions:

• Effective management of colorectal peritoneal metastases (CRPM) is crucial given the rising incidence of colorectal cancer (CRC).
• Cytoreductive surgery (CRS) remains a vital therapeutic option for achieving locoregional control in carefully selected patients with CRPM.