How are mammogram abnormalities reported?

Updated: Jan 31, 2017
  • Author: Muhammad Neaman Siddique, MBBS; Chief Editor: Eugene C Lin, MD  more...
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Answer

Prior to describing the abnormalities, the report gives out the indication for the study, the breast density in percentage, and whether the examination was a screening or a diagnostic procedure.

Abnormalities are reported using the standard Breast Imaging-Reporting and Data System (BI-RADS) descriptors. The location(s) of the lesion(s) are described with reference to a quadrant or clock position, and the depth within the breast. Each breast is arbitrarily divided into 4 quadrants: upper-inner, upper-outer, lower-inner, and lower-outer. In terms of depth, the breast is divided into anterior, middle, or posterior.

After an evaluation is done by the reader, the mammography report is prepared, and all mammograms are labeled as one of the standard BI-RADS categories based upon the presence or absence of various mammographic abnormalities.


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