---
title: "Peritoneal Cancer Index (PCI) | Glossary | Hayhurst Medical Technologies"
description: "A score of how much tumor is in the abdomen, across 13 regions, used to plan treatment for peritoneal disease."
canonical: https://hayhursttech.com/glossary/peritoneal-cancer-index/
---

Resources · Glossary

# Peritoneal Cancer Index (PCI)

A score of how much tumor is in the abdomen, across 13 regions, used to plan treatment for peritoneal disease.

A way to describe how much tumor is spread across the lining of the abdomen. The abdomen is divided into 13 regions, and each region is scored from 0 to 3 by the size of the largest tumor in it, for a total from 0 to 39\. Surgeons use it to plan treatment and to describe disease consistently.

## Sources

- [Jacquet and Sugarbaker, Cancer Treat Res 1996](https://pubmed.ncbi.nlm.nih.gov/8849962/)

## Related terms

- [Cytoreductive surgery](/glossary/cytoreductive-surgery/)
- [Peritoneal metastases](/glossary/peritoneal-metastases/)

Last reviewed September 29, 2026.[All terms](/glossary/)