Broders grading system
Pronunciation: BROH-ders GRAY-ding SIS-tem
A histological grading system for gastrointestinal cancers based on the degree of cellular differentiation.
Full Definition
The Broders grading system is a four-tier histopathological classification that evaluates the degree of differentiation in gastrointestinal malignancies. Grade I tumors show well-differentiated cells with minimal anaplasia, Grade II shows moderate differentiation, Grade III indicates poor differentiation with significant cellular atypia, and Grade IV represents undifferentiated or anaplastic tumors. This system helps predict tumor behavior, with higher grades generally associated with more aggressive disease and poorer prognosis. While largely superseded by more specific grading systems for individual tumor types, Broders grading remains relevant in certain gastrointestinal cancers and provides a standardized approach to communicating tumor differentiation status.
Usage
Usage note: Always capitalize 'Broders' as an eponym. Use Roman numerals (I-IV) for grade designation.
In Context
- "Histopathology revealed Broders Grade III adenocarcinoma with poor differentiation and increased mitotic activity." — Pathology report
- "The tumor showed features consistent with Broders Grade I, indicating well-differentiated morphology." — Multidisciplinary team meeting notes