Table 2 Relationship between hormonal receptors and MRI findings
MRI | HR-positive N = 44 | HR-negative N = 16 | Test | P value | ||
|---|---|---|---|---|---|---|
| Â | No | % | No | % | X2 | Â |
Lesion |  |  |  |  | Fisher’s |  |
 Mass | 36 | 81.8 | 13 | 81.2 | 0.003 | 1.0 |
 NME | 8 | 18.2 | 3 | 18.8 |  |  |
Enhancement pattern | ||||||
 Homogenous enhancement | 7 | 15.9 | 1 | 6.2 |  |  |
 Heterogenous enhancement | 31 | 70.5 | 9 | 56.2 | 4.52 | 0.10 |
 RIM enhancement | 6 | 13.6 | 6 | 37.5 |  |  |
Shape of mass lesions | ||||||
 Round | 1 | 2.8 | 3 | 23.1 | 5.96 | 0.05 |
 Oval | 6 | 16.7 | 3 | 23.1 |  |  |
 Irregular | 29 | 80.6 | 7 | 58.2 |  |  |
Margin of mass lesions |  |  |  |  | Fisher’s |  |
 Circumscribed | 3 | 8.3 | 6 | 46.2 | 9.11 | 0.007 |
 Non circumscribed | 33 | 91.7 | 7 | 53.8 |  |  |
Kinetic | ||||||
 Plateau | 26 | 59.1 | 6 | 37.5 |  |  |
Washout | 4 | 9.1 | 10 | 62.5 | 20.46 | < 0.001 |
Persistent | 14 | 31.8 | 0 | 0.0 | Â | Â |