Stage, Grade, and Risk
Educational orientation
Source-checked: 2026-06-05. This page explains categories; it does not estimate individual prognosis.
Core Idea
Stage, grade, and risk are related but different. Stage usually describes extent of disease: tumor size or local invasion, lymph nodes, and distant spread. Grade describes how abnormal the cells look and sometimes how aggressively they appear to grow. Risk combines multiple features to guide evidence-based thinking.
Different cancers use different staging and risk systems. A stage number in one disease is not interchangeable with the same number in another.
Essential Vocabulary
- TNM: tumor, nodes, metastasis.
- Grade: microscopic aggressiveness category.
- Risk group: combined category used in some cancers.
- Prognostic factor: feature associated with outcome.
What This Does Not Mean
Stage is not destiny. It is a population-level and clinical-planning framework, not a precise personal prediction.
Builder/Data Lens
Do not mix clinical stage, pathologic stage, grade, and risk group as if they were one column.
Go Deeper
References
- National Cancer Institute. Cancer Staging
- National Cancer Institute. NCI Dictionary of Cancer Terms