SEER staging
Also written as: SEER — Surveillance, Epidemiology, and End Results
Surveillance, Epidemiology, and End Results staging system used specifically for neuroendocrine tumors to classify extent of disease.
Full Definition
The SEER staging system is a simplified three-tier classification (localized, regional, distant) used by cancer registries and clinical researchers to categorize neuroendocrine tumors based on anatomic extent of disease. Unlike TNM staging, SEER staging focuses on whether the tumor is confined to the organ of origin (localized), has spread to nearby lymph nodes or tissues (regional), or has metastasized to distant sites (distant). This system is particularly useful in endocrine oncology for epidemiological studies and outcome comparisons across different neuroendocrine tumor types.
Usage
Usage note: Distinguish from TNM staging which provides more detailed anatomic classification.
In Context
- "The patient's pancreatic NET was classified as SEER stage distant due to liver metastases." — pathology report
- "SEER staging showed improved survival outcomes for localized versus regional disease." — research paper