Table 3. MR Findings of Benign Adenomyoepithelioma of the Breast (n = 18).
| Category | Finding | Total (%) |
|---|---|---|
| Background parenchymal enhancement | Minimal | 3 (16.7) |
| Mild | 5 (27.8) | |
| Moderate | 8 (44.4) | |
| Marked | 2 (11.1) | |
| Type | Non-mass | 0 (0) |
| Mass | 18 (100) | |
| Shape | Round/oval | 9 (50) |
| Irregular | 9 (50) | |
| Margin | Circumscribed | 7 (38.9) |
| Not circumscribed | 11 (61.1) | |
| Intratumoral cystic change | Present | 1 (5.6) |
| Absent | 17 (94.4) | |
| Internal enhancement pattern | Heterogeneous | 17 (94.4) |
| Homogeneous | 1 (5.6) | |
| Kinetics | Persistent | 2 (11.1) |
| Plateau | 1 (5.6) | |
| Washout | 15 (83.3) | |
| T2 signal | High | 2 (11.1) |
| Not high | 16 (88.9) | |
| BI-RADS | 3 | 1 (5.6) |
| 4A | 9 (50) | |
| 4B | 2 (11.1) | |
| 4C | 4 (22.2) | |
| 5 | 2 (11.1) |
BI-RADS = Breast Imaging-Reporting and Data System