🎀 Mammography BI-RADS Structured Read
Enter mammography findings and get a suggested BI-RADS v2025 (6th edition) category by 'most suspicious feature decides the category'. Instant, browser-side.
Clinical takeaway
BI-RADS has no official scoring — the category is set by the most suspicious feature.
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When to use
Structured assistance in assigning a mammography BI-RADS category from descriptors.
How it works
Most suspicious feature drives the level: spiculated mass or fine-linear branching calcifications (segmental/linear) or suspicious feature + retraction → 4C–5; suspicious calcifications, microlobulated/indistinct margin, irregular/high-density mass, developing asymmetry, distortion → 4; circumscribed mass / focal asymmetry → 3; benign calcifications / fat-containing mass → 2.
Key points
- BI-RADS has no official scoring — the category is set by the most suspicious feature.
- Associated features (skin/nipple retraction) can upgrade a suspicious finding to 5.
- v2025 splits category 0 into 'needs additional imaging' and 'needs prior comparison'.
- The final category must integrate bilateral comparison, prior films and clinical context.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Mass margin | No mass |
|---|---|
| Mass shape/density | Not applicable (no mass) |
| Calcification morphology | No calcifications |
| Calcification distribution | Not applicable (no calcifications) |
| Asymmetry | None |
| Architectural distortion | None |
| Suspicious associated features (skin/nipple retraction, skin thickening, axillary adenopathy) | None |
→Suggested categoryBI-RADS 1
- Suggested category：BI-RADS 1: Negative
- Deciding feature：No abnormal feature entered (negative)
- Management：No abnormal finding: routine screening
| Mass margin | Spiculated |
|---|---|
| Mass shape/density | Fat-containing (lipoma/hamartoma/oil cyst) |
| Calcification morphology | Fine linear / fine-linear branching |
| Calcification distribution | Segmental |
| Asymmetry | Developing asymmetry |
| Architectural distortion | Present |
| Suspicious associated features (skin/nipple retraction, skin thickening, axillary adenopathy) | Present |
→Suggested categoryBI-RADS 5
- Suggested category：BI-RADS 5: Highly suggestive of malignancy (≥ 95%)
- Deciding feature：most suspicious feature → suspicious feature + skin/nipple retraction or similar associated feature (also: spiculated mass, fine linear / branching calcifications, fine-linear branching + segmental/linear distribution, developing asymmetry, architectural distortion, with skin/nipple retraction etc. → upgraded to 5)
- Management：Biopsy/management; a benign pathology discordant with imaging still needs surgical consultation
Frequently asked questions
- What is Mammography BI-RADS Structured Read?
- Enter mammography findings and get a suggested BI-RADS v2025 (6th edition) category by 'most suspicious feature decides the category'. Instant, browser-side.
- How is Mammography BI-RADS Structured Read calculated? What is the core formula?
- Most suspicious feature drives the level: spiculated mass or fine-linear branching calcifications (segmental/linear) or suspicious feature + retraction → 4C–5; suspicious calcifications, microlobulated/indistinct margin, irregular/high-density mass, developing asymmetry, distortion → 4; circumscribed mass / focal asymmetry → 3; benign calcifications / fat-containing mass → 2.
- When is Mammography BI-RADS Structured Read used?
- Structured assistance in assigning a mammography BI-RADS category from descriptors.
- What are the key clinical points for Mammography BI-RADS Structured Read?
- BI-RADS has no official scoring — the category is set by the most suspicious feature. Associated features (skin/nipple retraction) can upgrade a suspicious finding to 5. v2025 splits category 0 into 'needs additional imaging' and 'needs prior comparison'. The final category must integrate bilateral comparison, prior films and clinical context.
- What are the limits and cautions when using Mammography BI-RADS Structured Read?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Mammography BI-RADS Structured Read calculated in practice? Can you show a worked example?
- Inputs: Mass margin No mass, Mass shape/density Not applicable (no mass), Calcification morphology No calcifications, Calcification distribution Not applicable (no calcifications), Asymmetry None, Architectural distortion None, Suspicious associated features (skin/nipple retraction, skin thickening, axillary adenopathy) None → Result: Suggested category BI-RADS 1（Suggested category: BI-RADS 1: Negative, Deciding feature: No abnormal feature entered (negative), Management: No abnormal finding: routine screening） Inputs: Mass margin Spiculated, Mass shape/density Fat-containing (lipoma/hamartoma/oil cyst), Calcification morphology Fine linear / fine-linear branching, Calcification distribution Segmental, Asymmetry Developing asymmetry, Architectural distortion Present, Suspicious associated features (skin/nipple retraction, skin thickening, axillary adenopathy) Present → Result: Suggested category BI-RADS 5（Suggested category: BI-RADS 5: Highly suggestive of malignancy (≥ 95%), Deciding feature: most suspicious feature → suspicious feature + skin/nipple retraction or similar associated feature (also: spiculated mass, fine linear / branching calcifications, fine-linear branching + segmental/linear distribution, developing asymmetry, architectural distortion, with skin/nipple retraction etc. → upgraded to 5), Management: Biopsy/management; a benign pathology discordant with imaging still needs surgical consultation）