Table 2. Ultrasonography Findings of Benign Adenomyoepithelioma of the Breast (n = 41).
| Category | Finding | Total (%) | |
|---|---|---|---|
| Negative | 1 (2.4) | ||
| Positive | 40 (97.6) | ||
| Type | Mass | 39 (97.5) | |
| Shape | Round/oval | 20 (51.3) | |
| Irregular | 19 (48.7) | ||
| Orientation | Parallel | 32 (82.1) | |
| Not parallel | 7 (17.9) | ||
| Margin | Circumscribed | 13 (33.3) | |
| Not circumscribed | 26 (66.7) | ||
| Non-mass | 1 (2.5) | ||
| Echogenicity | Anechoic | 1 (2.5) | |
| Hypoechoic | 17 (42.5) | ||
| Isoechoic | 18 (45) | ||
| Complex cystic and solid | 2 (5) | ||
| Mixed hyper and hypo | 2 (5) | ||
| Homogeneity | Heterogeneous | 31 (77.5) | |
| Homogeneous | 9 (22.5) | ||
| Posterior acoustic feature | No effect | 30 (75) | |
| Enhancement | 10 (25) | ||
| Surrounding tissue | No effect | 40 (100) | |
| Effect (ductal change, edema) | 0 (0) | ||
| Calcifications | No calcification | 40 (100) | |
| Calcification | 0 (0) | ||
| Intratumoral cystic change | Present | 5 (12.5) | |
| absent | 35 (87.5) | ||
| Vascularity | Avascular | 15 (37.5) | |
| Increased | 25 (62.5) | ||
| BI-RADS | 3 | 6 (15) | |
| 4A | 21 (52.5) | ||
| 4B | 11 (27.5) | ||
| 4C | 1 (2.5) | ||
| 5 | 1 (2.5) | ||
BI-RADS = Breast Imaging-Reporting and Data System