BI-RADS 2 is a benign category in the breast imaging reporting and data system. A finding placed in this category should have essentially a 100% chance of being benign.
Examples of such lesions include
- calcified fibroadenomas
- multiple secretory calcifications
- fat containing lesions such as:
- cutaneous neurofibromas 3: e.g. in neurofibromatosis type I (evidence of sarcomatous change is change is considered very low)
- intramammary lymph nodes
- breast sebaceous cysts
- simple breast cysts 4
Although BI-RADS 1 and BI-RADS 2 have an essentially 0% chance of malignancy, BI-RADS 1 is used in situations where the breast is completely unremarkable, and BI-RADS 2 is used when the radiologist wants to remark on a benign finding.
Any BI-RADS 2 breast finding is not expected to change over the follow-up interval. The radiologist should mention that it is a definite benign lesion.
Usual screening follow up is recommended.
- 1. Orel SG, Kay N, Reynolds C et-al. BI-RADS categorization as a predictor of malignancy. Radiology. 1999;211 (3): 845-50. Radiology (full text) - Pubmed citation
- 2. Conant EF, Brennecke CM. Breast imaging, case review. Mosby Inc. (2006) ISBN:0323017460. Read it at Google Books - Find it at Amazon
- 3. Cardeñosa G. Clinical breast imaging, a patient focused teaching file. Lippincott Williams & Wilkins. (2006) ISBN:0781762677. Read it at Google Books - Find it at Amazon
Synonyms & Alternative Spellings
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|BIRADS 2 lesion||✗|