Pulmonary Nodule Lung-RADS v2022 Category — free guideline decision tool
Compute the Lung-RADS v2022 category from nodule type and size at baseline screening, with follow-up management. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
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.
| Nodule type | Solid |
|---|---|
| Total nodule diameter | 9 mm |
| Solid component diameter (if part-solid) | 5 mm |
→CategoryLung-RADS 4A
- Category：Lung-RADS 4A (malignancy likelihood 5–15%)
- Management：Suspicious: 3-month LDCT; add PET/CT if solid component ≥ 8 mm
- Read：Type: solid, total diameter 9 mm (baseline-screen thresholds)
| Nodule type | Pure ground-glass |
|---|---|
| Total nodule diameter | 9 mm |
| Solid component diameter (if part-solid) | 5 mm |
→CategoryLung-RADS 2
- Category：Lung-RADS 2 (malignancy likelihood < 1%)
- Management：Benign appearance/behaviour: 12-month LDCT, continue annual screening
- Read：Type: pure ground-glass, total diameter 9 mm (baseline-screen thresholds)
Common questions
What is Pulmonary Nodule Lung-RADS v2022 Category?
Compute the Lung-RADS v2022 category from nodule type and size at baseline screening, with follow-up management. Instant, browser-side.
How is Pulmonary Nodule Lung-RADS v2022 Category calculated? What is the core formula?
Solid: < 6 → 2, 6–< 8 → 3, 8–< 15 → 4A, ≥ 15 → 4B. Part-solid scored by solid component (< 6 → 3, 6–< 8 → 4A, ≥ 8 → 4B). Pure ground-glass: < 30 → 2, ≥ 30 → 3.
When is Pulmonary Nodule Lung-RADS v2022 Category used?
Classify a nodule on low-dose CT lung-cancer screening and set the follow-up.
What are the key clinical points for Pulmonary Nodule Lung-RADS v2022 Category?
For screening only — use Fleischner for incidental non-screening nodules. Additional suspicious features (spiculation, bubbly lucency, adenopathy) upgrade to 4X. New or growing nodules use lower thresholds (growth ≥ 1.5 mm). 4A → 3-month LDCT (add PET/CT if solid component ≥ 8 mm); 4B → diagnostic CT/PET/sampling.
What are the limits and cautions when using Pulmonary Nodule Lung-RADS v2022 Category?
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 Pulmonary Nodule Lung-RADS v2022 Category calculated in practice? Can you show a worked example?
Inputs: Nodule type Solid, Total nodule diameter 9 mm, Solid component diameter (if part-solid) 5 mm → Result: Category Lung-RADS 4A（Category: Lung-RADS 4A (malignancy likelihood 5–15%), Management: Suspicious: 3-month LDCT; add PET/CT if solid component ≥ 8 mm, Read: Type: solid, total diameter 9 mm (baseline-screen thresholds)） Inputs: Nodule type Pure ground-glass, Total nodule diameter 9 mm, Solid component diameter (if part-solid) 5 mm → Result: Category Lung-RADS 2（Category: Lung-RADS 2 (malignancy likelihood < 1%), Management: Benign appearance/behaviour: 12-month LDCT, continue annual screening, Read: Type: pure ground-glass, total diameter 9 mm (baseline-screen thresholds)）
Run Pulmonary Nodule Lung-RADS v2022 Category now
Compute the Lung-RADS v2022 category from nodule type and size at baseline screening, with follow-up management. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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