Table 2 Histological and molecular subtype characteristics of invasive and in situ breast cancer cases (n = 65).
Invasive (n = 57) | In situ (n = 8) | ||||
|---|---|---|---|---|---|
n | (%) | n | (%) | ||
Histotype | Histotype | ||||
Ductal NOS | 30 | 56.0 | Ductal NOS | 3 | 37.5 |
Lobular | 8 | 18.0 | Solid | 1 | 12.5 |
Tubular | 4 | 8.0 | Micropapillary | 1 | 12.5 |
Other | 9 | 18.0 | Papillary | 1 | 12.5 |
Missing | 6 | Other | 2 | 25.0 | |
Grade | Grade | ||||
I | 18 | 34.7 | I | 2 | 25.0 |
II | 25 | 51.0 | II | 2 | 25.0 |
III | 6 | 14.3 | III | 4 | 50.0 |
Missing | 8 | Tumour size [I27], mm | |||
pT | 1–10 | 4 | 50.0 | ||
1a-1b-1mic | 25 | 48.1 | 11–20 | 2 | 25.0 |
1c | 24 | 42.6 | 21 + | 2 | 25.0 |
2 + | 5 | 9.3 | |||
Missing | 3 | ||||
Tumour size, mm | |||||
1–10 | 25 | 46.3 | |||
11–20 | 24 | 44.4 | |||
21 + | 5 | 9.3 | |||
Misssing | 3 | ||||
Stage | |||||
IA | 42 | 87.5 | |||
IIA | 3 | 6.3 | |||
IIIC | 2 | 4.2 | |||
IV | 1 | 2.1 | |||
Missing | 9 | ||||
Molecular subtypes | |||||
ER | |||||
Negative | 8 | 15.1 | |||
Positive (> 10%) | 45 | 84.9 | |||
Missing or undetermined | 4 | ||||
PgR | |||||
Negative | 17 | 32.1 | |||
Positive (> 10%) | 36 | 69.9 | |||
Missing or undetermined | 4 | ||||
Her2 | |||||
Negative | 45 | 86.5 | |||
Positive | 7 | 13.5 | |||
Missing or undetermined | 5 | ||||
Ki-67 | |||||
Negative | 39 | 76.5 | |||
Positive (> 20%) | 12 | 23.5 | |||
Missing or undetermined | 6 | ||||
Intrinsic subtype | |||||
Luminal A-like | 27 | 52.9 | |||
Luminal B-like (HER2 negative) | 13 | 25.5 | |||
Luminal B-like (HER2 positive) | 5 | 9.8 | |||
HER2 positive (non luminal) | 2 | 3.9 | |||
Triple negative | 4 | 7.8 | |||
Missing | 6 | ||||
