| BC | breast cancer |
| US | ultrasound |
| BI-RADS | breast imaging and reporting data system |
| ER | estrogen receptor |
| “−” | negative |
| “+” | positive |
| PR | progesterone receptor |
| Ki67% | proliferative index |
| SE | strain elastography |
| ACR | American College of Radiology |
| VUS | variants of uncertain significance |
| BGR | blue-green-red elastography appearance |
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