Risk Category | Patient Features |
---|---|
Low risk | Node negative AND all of the following features: |
pT ≤2 cm, | |
Grade 1, | |
Absence of peritumoral vascular invasion, | |
HER2/neu gene neither overexpressed nor amplified, | |
Age ≥35 years | |
Intermediate risk | Node negative AND at least one of the following features: |
pT >2 cm, | |
Grade 2–3, | |
Presence of peritumoral vascular invasion, | |
HER2/neu gene overexpressed or amplified, | |
Age >35 years | |
Node positive (1–3 involved nodes) AND | |
HER2/neu gene neither overexpressed nor amplified | |
High risk | Node positive (1–3 involved nodes) AND |
HER2/neu gene overexpressed or amplified | |
Node positive (4 or more involved nodes) |