Table 3.
Sonographic characteristics of IMPC lesions (n = 54).
| Characteristics | No. (%) |
|---|---|
| Shape | |
| Oval | 4 (7.4) |
| Round | 2 (3.7) |
| Irregular | 48 (88.9) |
| Orientation | |
| Parallel | 22 (40.7) |
| Not parallel | 32 (59.2) |
| Margin | |
| Circumscribed | 1 (1.9) |
| Indistinct | 0 (0) |
| Angular | 23 (42.5) |
| Microlobulated | 0 (0) |
| Spiculated | 30 (55.6) |
| Lesion boundary | |
| Abrupt interface | 13 (24.1) |
| Echogenic halo | 41 (75.9) |
| Echo pattern | |
| Hyperechoic | 0 (0) |
| Isoechoic | 2 (3.7) |
| Hypoechoic | 39 (72.2) |
| Complex | 12 (22.2) |
| Anechoic | 1 (1.9) |
| Posterior acoustic features | |
| No posterior acoustic feature | 2 (3.7) |
| Enhancement | 20 (37.0) |
| Shadowing | 11 (20.3) |
| Combined pattern | 21 (38.9) |
| Color Doppler | Done in 52/69 lesions |
| 0 | 10 (19.2) |
| + | 30 (57.7) |
| ++ | 12 (23.1) |
Notes: Data represent the no. (%) of patients.
Abbreviations: IMPC, invasive micropapillary breast carcinoma.