Table 2.
Clinical characteristics of the patients with (+) and without (–) IMLN imaging in the experimental side
| Characteristic | IMLN– | IMLN+ | p-value |
|---|---|---|---|
| Age (yr) | |||
| Median | 49.5 | ||
| ≤ 50 | 7 | 12 | 0.128 |
| > 50 | 8 | 3 | |
| BMI (kg/m2) | |||
| 18.5-24.9 | 11 | 12 | 1.000 |
| 25.0-28.0 | 4 | 3 | |
| > 28.0 | 0 | 0 | |
| Mammographic density | |||
| ACR 1 | 6 | 1 | 0.074 |
| ACR 2 | 6 | 10 | |
| ACR 3 | 2 | 4 | |
| ACR 4 | 1 | 0 | |
IMLN, internal mammary lymph node; BMI, body mass index; ACR, American College of Radiology (ACR 1; almost entirely fat, glandular tissue < 25%; ACR 2, scattered fibroglandular densities [ca. 25-50% of breast]; ACR 3, heterogeneously breast dense [ca. 51-75% of breast]; and ACR 4, extremely dense [> 75% of breast]).