Breast imaging-reporting and data system (BI-RADS) assessment category 2
Citation, DOI & article data
BI-RADS 2 is a benign category in breast imaging reporting and data system. A finding placed in this category should have a 100% chance of being benign.
Examples of such lesions or findings 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
- breast implants
Although BI-RADS 1 and BI-RADS 2 both denote an essentially zero 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
- 4. BIRADS website : www.birads.at
- 5. ACR. ACR BI-RADS Atlas. AMER COLLEGE OF RADIOLOGY. ISBN:155903016X. Read it at Google Books - Find it at Amazon
- 6. Gossman W, Shikhman R, Keppke AL. Breast, Imaging, Reporting and Data System (BI RADS) [Updated 2019 Jul 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2019 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK459169/ https://www.ncbi.nlm.nih.gov/books/NBK459169/