Table 2.
Mammographic characteristics of IMPC lesions (n = 32).
| Characteristics | No. (%) |
|---|---|
| Negative | 1 (3.3) |
| (Focal) asymmetry | 6 (18.7) |
| Calcification only | 0 (0) |
| Mass | |
| Shape (n = 32) | |
| Round | 2 (6.3) |
| Oval | 5 (15.6) |
| Lobular | 4 (12.5) |
| Irregular | 21 (65.6) |
| Margin (n = 32) | |
| Circumscribed | 3 (9.4) |
| Microlobulated | 3 (9.4) |
| Obscured | 1 (3.1) |
| Indistinct | 9 (28.1) |
| Spiculated | 16 (50) |
| Density (n = 32) | |
| High | 19 (59.4) |
| Equal | 1 (3.1) |
| Low | 0 (0) |
| Mixed | 12 (37.5) |
| Calcifications | |
| Shape (n = 12) | |
| Amorphous | 2 (16.7) |
| Round | 0 (0) |
| Punctate | 10 (83.3) |
| Fine Pleomorphic | 0 (0) |
| Fine linear or fine linear branching | 0 (0) |
| Distribution (n = 12) | |
| Regional | 2 (16.7) |
| Clustered | 0 (0) |
| Linear | 0 (0) |
| Segmental | 1 (8.3) |
| Scattered | 9 (75) |
Notes: Data represent the no. (%) of patients.
Abbreviations: IMPC, invasive micropapillary breast carcinoma.