Table 1.
Variables of clinical characters, mammographic features, procedural relationships and specimen biomarkers.
| Variables | No. (%) | |
|---|---|---|
| Study Period | 2010–2016 | 131 (100) |
| Age of initial diagnosis (years) | Median (IQR) | 52.0 (10.0) |
| Lesion location | Right | 70 (53.4) |
| Left | 61 (46.6) | |
| Family history of breast cancer | Yes | 10 (7.6) |
| No | 121 (92.4) | |
| Parenchymal density | Almost entirely fat | 2 (1.5) |
| Scattered fibroglandular | 24 (18.3) | |
| Heterogeneously dense | 84 (64.1) | |
| Extremely dense | 21 (16.0) | |
| Microlcalcifications extent (mm) | Median (IQR) | 12.0 (13.0) |
| Distribution of microcalcifications | Regional | 18 (13.7) |
| Grouped | 96 (73.3) | |
| Linear or segmental | 17 (13.0) | |
| Morphology of microcalcifications | Amorphous | 50 (38.2) |
| Pleomorphic | 69 (52.7) | |
| Fine linear or branched | 12 (9.2) | |
| Biopsy needle gauge | 7 G | 27 (20.6) |
| 10 G | 104 (79.4) | |
| Microcalcification retrieval (%) | <90 | 81 (61.8) |
| ≥90 | 50 (38.2) | |
| BI-RADS category | 4a | 73 (55.7) |
| 4b | 31 (23.7) | |
| 4c | 27 (20.6) | |
| DCIS grade | Low | 18 (13.7) |
| Intermediate | 81 (61.8) | |
| High | 32 (24.4) | |
| Histology of non-calcified specimens | Benign | 65 (49.6) |
| DCIS | 66 (50.4) | |
| Estrogen receptor | Negative | 28 (21.4) |
| Positive | 103 (78.6) | |
| Progesterone receptor | Negative | 35 (26.7) |
| Positive | 96 (73.3) | |
| HER-2 status | Negative | 93 (71.0) |
| Positive | 38 (29.0) | |
Abbreviations: IQR: interquartile range; DCIS: ductal carcinoma in situ; BI-RADS: Breast Imaging Reporting and Data System; HER-2: human epidermal growth factor receptor 2.