Assessment | Management | Likelihood of cancer |
Category 0: Incomplete – Need additional imaging evaluation and/or prior mammograms for comparison | Recall for additional imaging and/or comparison with prior examination(s) | N/A |
Category 1: Negative | Routine mammography screening | Essentially 0% likelihood of malignancy |
Category 2: Benign | Routine mammography screening | Essentially 0% likelihood of malignancy |
Category 3: Probably benign | Short-interval (6-month) follow-up or continued surveillance mammography | >0 but ≤2% likelihood of malignancy |
Category 4: Suspicious | Tissue diagnosis* | >2 but <95% likelihood of malignancy |
Category 4A: Low suspicion for malignancy | >2 to ≤10% likelihood of malignancy | |
Category 4B: Moderate suspicion for malignancy | >10 to ≤50% likelihood of malignancy | |
Category 4C: High suspicion for malignancy | >50 to <95% likelihood of malignancy | |
Category 5: Highly suggestive of malignancy | Tissue diagnosis* | ≥95% likelihood of malignancy |
Category 6: Known biopsy-proven malignancy | Surgical excision when clinically appropriate | N/A |
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