Nottingham / Elston–Ellis Grading
Invasive breast carcinoma · Modified Scarff–Bloom–Richardson
2 mm² thresholds: ≤7 = 1; 8–14 = 2; ≥15 = 3. Use a measured 2 mm² tumour area, not an arbitrary 10 HPF.
For 10 HPF, determine the score using a published table calibrated to your microscope field diameter.
Result / Ergebnis
Complete all criteria
References & limitations
Elston & Ellis (1991), original grading method
ICCR (2024), mitotic area calibration and reporting
CAP invasive breast biopsy protocol (2026)
Clinical decision support only. This tool is intended for invasive breast carcinoma. Verify mitotic field calibration and morphology before signing out. Do not enter patient identifiers.