Table 1.
Characteristics of rare breast tumor types
| Medullary (n=12) | Tubular (n=5) | Mucinous (n=18) | Metaplastic (n=5) | Lobular (n=56) | Micropapillary (n=3) | Cribriform (n=1) | Apocrine (n=1) | Total (n=101) | |
|---|---|---|---|---|---|---|---|---|---|
| Mean Age (Year) | 56.5 | 59.8 | 58.9 | 56.8 | 53.9 | 55.1 | 68.0 | 41.0 | 59.4 |
| Right/Left | 8/4 | 2/3 | 5/13 | 1/4 | 33/23 | 1/2 | 1/0 | 0/1 | 23/30 |
| Mean Tumor size* | 3.7 | 1.5 | 3.8 | 3.9 | 4.3 | 5.5 | 4.0 | 5.0 | 3.8 |
| Tumor size (cm) | |||||||||
| <2.0 | 1 | 4 | 3 | 1 | 8 | 0 | 0 | 0 | 9 (17%) |
| 2.0–4.9 | 6 | 1 | 12 | 3 | 28 | 0 | 1 | 0 | 28 (53% |
| ≥5.0 | 5 | 0 | 3 | 1 | 20 | 3 | 0 | 1 | 16 (30%) |
| Lymph node status | |||||||||
| Negative | 5 | 4 | 12 | 4 | 21 | 0 | 1 | 0 | 20 (37.7%) |
| Positive | 7 | 1 | 6 | 1 | 35 | 3 | 0 | 1 | 33 (62.3%) |
| Molecular type | |||||||||
| Luminal A | 1 | 4 | 10 | 0 | 40 | 3 | 1 | 1 | 31 (58.4%) |
| Luminal B | 0 | 1 | 8 | 0 | 11 | 0 | 0 | 0 | |
| HER2/ER | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 (9.4%) |
| Basal | 9 | 0 | 0 | 5 | 4 | 0 | 0 | 0 | 17 (32.2%) |
| Grade | |||||||||
| I | 0 | 5 | 12 | 0 | 31 | 0 | 1 | 0 | 30 (56.6%) |
| II | 0 | 0 | 3 | 2 | 23 | 1 | 0 | 0 | 6 (11.3%) |
| III | 12 | 0 | 3 | 3 | 2 | 2 | 0 | 1 | 17 (32.1%) |
| Stage | |||||||||
| I | 1 | 4 | 5 | 1 | 8 | 0 | 0 | 0 | 11 (20.7%) |
| II | 10 | 1 | 9 | 3 | 19 | 0 | 1 | 0 | 29 (54.7%) |
| III | 1 | 0 | 4 | 1 | 29 | 3 | 0 | 1 | 13 (24.6%) |
| IV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Existence of DCIS | 0 | 4 | 2 | 2 | 120 | 3 | 1 | 1 | 15 (28.3%) |
*
p=0.2 (ANOVA)
DCIS: ductal carcinoma in situ