Table 3.
Outcomes of screening breast MRI
| Results of MRI | Mode of confirmation | Method of biopsy | Results of biopsy | ||
|---|---|---|---|---|---|
| AB-MRI (n = 656) | Positive (20) | Biopsy or FNA (13) | Ultrasound-guided CNB (11) | Malignant (5) | IDC (3) ILC (1) DCIS (1) |
| Benign (6) | Fat necrosis (2) Stromal fibrosis (1) Usual ductal epithelial hyperplasia (1) Intrauctal papilloma (1) Fibroadenoma (1) |
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| Ultrasound-guided FNA (2) | Malignant (2) | Metastatic carcinoma (internal mammary LN) | |||
| Follow up (7) | Benign (7) | ||||
| Negative (636) | Biopsy or FNA (3) | Ultrasound-guided CNB (2) | Malignant (2) | IDC | |
| Ultrasound-guided FNA (1) | Malignant (1) | Metastatic carcinoma (axillary LN) | |||
| Follow up (633) | Negative results of follow up images after 1 year (633) | ||||
| FDP-MRI (n = 656) | Positive (26) | Biopsy or FNA (18) | Ultrasound-guided CNB (6) | Malignant (3) | IDC (1) Metaplastic carcinoma (1) DCIS (1) |
| Benign (3) | Stromal fibrosis (2) Nonspecific benign (1) |
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| Ultrasound-guided FNA (1) | Malignant (1) | Metastatic carcinoma (internal mammary LN) | |||
| MR-guided VAB (9) | Malignant (1) | IDC | |||
| Benign (8) | Sclerosing adenosis (1) Stromal fibrosis (1) Atypical ductal hyperplasia (1) Fibrocystic change (1) Chronic inflammation (1) Fibroadenomatous mastopathy (1) Non-specific benign (2) |
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| Ex after MR-guided localization (2) | Malignant (1) | Invasive cribriform carcinoma | |||
| Benign (1) | Atypical ductal hyperplasia | ||||
| Follow up (8) | Benign (8) | ||||
| Negative (630) | Follow up (630) | Negative results of follow up images after 1 year (630) | |||
CNB, core needle biopsy; FNA, fine needle aspiration; VAB, vacuum-assisted biopsy; Ex, excisional biopsy; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; DCIS, ductal carcinoma in situ; LN, lymph node.