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Breast cancer T stages
Stage
Criterion
T0
No evidence of PT
Tis
- DCIS
- LCIS
- Paget
In situ carcinoma
-
Ductal Ca in situ
-
Lobular Ca in situ
-
Paget of the nipple, no invasive foci
T1
- T1a
- T1b
- T1c
Tumor 2 cm or less in diameter
-
max. 5 mm in diameter
-
> 5 mm but max. 10 mm in diameter
-
> 10 mm but max. 20 mm in diameter
T2
> 2 cm but max. 5 cm in diameter
T3
> 5 cm in diameter
T4
Any size with direct invasion of chest wall or skin,
including inflammatory carcinoma