Table 5. Ultrasonographic features of malignant neoplasms—total (18).
| Greyscale sonographic features | Malignant neoplasms | No. | Percentage |
| Boundary | Very clear | 1 | 5.5 |
| Relatively clear | |||
| Partially unclear | 6 | 33.3 | |
| Ill defined | 11 | 61.1 | |
| Shape | Oval | ||
| Lobular | 4 | 22.2 | |
| Polygonal | |||
| Irregular | 10 | 55.5 | |
| Round | 4 | 22.2 | |
| Echo intensity | Anechoic | ||
| Isoechoic | 4 | 22.2 | |
| Hypoechoic | 14 | 77.7 | |
| Iso + hypoechoic | 1 | 5.5 | |
| Hyperechoic | |||
| Ultrasound architecture of lesion | Homogeneous | 4 | 22.2 |
| Heterogeneous | 14 | 77.7 | |
| Posterior echoes | Enhanced | 6 | 33.3 |
| Unchanged | 7 | 38.8 | |
| Attenuated | 5 | 27.7 | |
| Ultrasound characteristic of tissues | Cystic | ||
| Solid | 14 | 77.7 | |
| Mixed | 4 | 22.2 |