Table 2 Clinicopathologic characteristics of subtypes
From: Immunohistochemical characterization of subtypes of male breast carcinoma
Subtypes | Luminal A (n = 35) | Luminal B (n = 7) | Total (n = 42) | P value* |
|---|---|---|---|---|
Demographics | ||||
Mean age (years) | 64 | 58 | 63 | 0.25 |
Race | ||||
Caucasian | 22 | 6 | 28 | |
African American | 6 | 1 | 7 | |
Hispanic | 7 | 0 | 7 | |
Histologic type | ||||
Invasive ductal carcinoma | 30 | 7 | 37 (88%) | |
Invasive papillary carcinoma | 5 | 0 | 5 (12%) | |
Other types | 0 | 0 | 0 | |
Nuclear grade | 0.06 | |||
1 | 2 | 0 | 2 | |
2 | 21 | 2 | 23 | |
3 | 12 | 5 | 17 | |
Cases with positive lymph node | 14 (41%) | 5 (71%) | 19 (45%) | 0.40 |
Mean number of positive lymph nodes | 1.5 | 2.3 | 1.6 | 0.40 |
Stage grouping | ||||
I | 9 | 1 | 10 | |
IIA | 10 | 3 | 13 | |
IIB | 9 | 2 | 11 | |
IIIA | 2 | 0 | 2 | |
IIIB | 4 | 1 | 5 | |
IV | 1 | 0 | 1 |