Table 3 Relationship between HER2/neu status and mammography findings
Mammography | HER2/neu-positive N = 13 | HER2/neu-negative N = 46 | Test | P value | ||
|---|---|---|---|---|---|---|
Size | Â | Â | U | Â | ||
 X ± SD | 2.14 ± 0.46 | 2.55 ± 1.09 | 1.06 | 0.29 | ||
 Range | 1.2–3.1 | 1.2–6.5 |  |  | ||
| Â | No | % | No | % | X2 | Â |
Lesion | Â | Â | Â | Â | Â | Â |
 Mass | 11 | 84.8 | 40 | 87.0 |  |  |
 Architectural changes | 1 | 7.7 | 3 | 6.5 | 0.05 | 0.98 |
 Asymmetry | 1 | 7.7 | 3 | 6.5 |  |  |
Focality of mass lesions |  |  |  |  | Fisher’s |  |
 Unifocal | 4 | 36.4 | 37 | 92.5 |  | < 0.001 |
 Multifocal | 7 | 63.6 | 3 | 7.5 | 17.25 |  |
Shape of mass lesions | Â | Â | Â | Â | Â | Â |
 Round | 0 | 0.0 | 4 | 10.0 | 4.80 | 0.09 |
 Oval | 0 | 0.0 | 9 | 22.5 |  |  |
 Irregular | 11 | 100 | 27 | 67.5 |  |  |
Calcification |  |  |  |  | Fisher’s |  |
 Present | 9 | 69.2 | 12 | 25.5 |  | 0.007 |
 Absent | 4 | 30.8 | 34 | 74.5 | 8.55 |  |