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Mass characteristics on ultrasound.
| Mass Characteristics | Number of lesions |
|---|---|
| Shape | |
| Oval | 33 |
| Round | 4 |
| Irregular | 24 |
|
| |
| Margin | |
| Circumscribed | 18 |
| Indistinct | 15 |
| Irregular | 15 |
| Microlobulated | 9 |
| Angular | 4 |
|
| |
| Echo Pattern | |
| Hypoechoic | 54 |
| Heterogeneous | 4 |
| Complex cystic | 2 |
| Isoechoic | 1 |
|
| |
| Posterior Features | |
| Shadowing | 15 |
| Enhancement | 2 |
| None | 44 |
|
| |
| Total | 61 |
