BIRADS 5 means an abnormality is highly suggestive of cancer. The suspicious area should be biopsied.
Many mammograms are considered borderline or indeterminate in their findings. BIRADS 3 means an abnormality is present and probably (but not definitely) benign.
A normal mammogram may also be rated as BIRADS 2 or benign findings. This means that one or more abnormalities were found but are clearly benign (not cancerous), or variations of normal.
BIRADS 4 means suspicious for cancer. A biopsy is usually recommended in this case.
A BIRADS 0 rating indicates that the mammogram is incomplete and requires further assessment.
Some kinds of calcification, lymph nodes, or implants in the breast might generate a BIRADS 2 rating.
A follow-up mammogram within a short interval of six months is suggested.
This helps to ensure that the abnormality is not changing, or is "stable." This stability in the abnormality indicates that a cancer is probably not present.
Some women are uncomfortable or anxious about waiting and may want to consult with their doctor about having a biopsy.
A normal mammogram may be rated as BIRADS 1 or negative, which means no abnormalities were seen.
It also rates the mammogram according to standardized categories, as part of the Breast Imaging Reporting and Data System (BIRADS) created by the American College of Radiology (ACR).
Mean is the average of numbers. 1 + 3 + 5 = 9 / 3 = 3 (So 3 is the mean number).