Peritoneal regression grading score (PRGS) in peritoneal metastasis: how many biopsies should be examined?

Abstract

The four-tied peritoneal regression grading score (PRGS) is increasingly used to evaluate the response of peritoneal metastases (PM) to chemotherapy. The minimal number of peritoneal biopsies needed for PRGS determination remains unclear.

Keywords

• antineoplastic agents
• drugs administration routes
• immunohistochemistry
• intraperitoneal chemotherapy
• peritoneal metastasis
• peritoneal regression grading score (prgs)
• pressurized intraperitoneal aerosol chemotherapy (pipac)
• tumor regression gastric cancer