Breast imaging-reporting and data system (BI-RADS) assessment category 1

Last revised by Karen Machang'a on 13 Oct 2023

Citation, DOI, disclosures and article data

Citation:

Radswiki T, Machang'a K, Luong D, et al. Breast imaging-reporting and data system (BI-RADS) assessment category 1. Reference article, Radiopaedia.org (Accessed on 06 Dec 2023) https://doi.org/10.53347/rID-14651

DOI:

https://doi.org/10.53347/rID-14651

Permalink:

https://radiopaedia.org/articles/14651

rID:

14651

Article created:

18 Aug 2011, The Radswiki ◉

Disclosures:

At the time the article was created The Radswiki had no recorded disclosures.

View The Radswiki's current disclosures

Last revised:

13 Oct 2023, Karen Machang'a ◉

Disclosures:

At the time the article was last revised Karen Machang'a had no financial relationships to ineligible companies to disclose.

View Karen Machang'a's current disclosures

Revisions:

8 times, by 7 contributors - see full revision history and disclosures

Systems:

Breast

Sections:

Classifications

Tags:

stub, refs

Synonyms:

BIRADS 1
BIRADS I
BIRADS I lesion
BI-RADS 1
BI-RADS I

BI-RADS 1 is one of seven categories from the breast imaging reporting and data system. It is defined as negative and is used when imaging demonstrates:

no finding is present in an imaging modality (not even a benign finding)
there is nothing to comment on
a normal examination

The likelihood of malignancy with a BI-RADS 1 classification is essentially 0% and the recommended management is for the patient to continue with routine mammography screening³.