Table 2 Pathological results of breast lesions classified as US BI-RADS 4A and 4B categories
From: The value of MRI for downgrading of breast suspicious lesions detected on ultrasound
Pathological results | Number of cases |
|---|---|
Malignant | 65 |
invasive ductal carcinoma | 42 (64.6%) |
ductal carcinoma in situ | 12 (18.5%) |
borderline or malignant phyllodes tumors | 5 (7.7%) |
other malignant tumors | 6 (9.2%) |
Benigna | 98 |
fibrocystic changes | 53 (54.1%) |
fibroadenoma | 24 (24.5%) |
intraductal papilloma | 10 (10.2%) |
inflammatory disease | 6 (6.1%) |
atypical ductal hyperplasia | 2 (2.0%) |
other benign lesions | 3 (3.1%) |