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Brock (PanCan) Nodule Risk
years
mm
Clinical Context & Background
The Brock (PanCan) model is derived from the Pan-Canadian Early Detection of Lung Cancer Study. It is often preferred over the Mayo model for patients undergoing lung cancer screening or those with nodules found on CT, as it accounts for nodule type (ground-glass vs solid) and spiculation in more detail.
Formula Logic
Logit-based regression using Age, Sex, Family Hx, Emphysema, Nodule Size, Type, Location, Count, Spiculation.Reference Data
| Risk Probability | Management Suggestion (Fleischner/BTS) |
|---|---|
| < 1% | Very Low Risk. No routine follow-up. |
| 1 - 10% | Low/Intermediate. CT Surveillance (3-12 months). |
| > 10% | High Risk. PET-CT or Biopsy/Resection recommended. |
Related Tools
Evidence-based oncology decision support. Verify with clinical guidelines.