Table 3 BI-RADS MRI assessment categories and management
From: Breast lesions in women under 25 years: radiologic-pathologic correlation
Assessment | Management |
|---|---|
Category 0: incomplete—need additional imaging evaluation | Recommend additional imaging: mammogram or targeted US |
Category 1: negative | Routine breast MRI screening if cumulative lifetime risk ≥ 20% |
Category 2: benign | Routine breast MRI screening if cumulative lifetime risk ≥ 20% |
Category 3: probably benign | Short-interval (6 months) follow-up If the finding is visible on e.g., US, the most widely available method should be used for follow-up (should be applied only to lesions not fitting categories II and IV, probably benign findings in high-risk screening should rather be biopsied than followed up) |
Category 4: suspicious | Tissue diagnosis |
Category 5: highly suggestive of malignancy | Tissue diagnosis |
Category 6: known biopsy-proven malignancy | Surgical excision when clinically appropriate |