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Van Nuys Prognostic Index (USC-VNPI)
Clinical Context & Background
The University of Southern California Van Nuys Prognostic Index (USC-VNPI) is a scoring system used to predict the risk of local recurrence in patients with Ductal Carcinoma In Situ (DCIS) of the breast. It aids in the decision-making process regarding the addition of radiation therapy after breast-conserving surgery.
Formula Logic
Sum of scores (1-3) for: Size, Margin Width, Pathologic Classification, and Age.Reference Data
| Total Score | Risk of Recurrence | Treatment Suggestion |
|---|---|---|
| 4 - 6 | Low Risk | Excision alone may be sufficient. |
| 7 - 9 | Intermediate Risk | Excision + Radiation. |
| 10 - 12 | High Risk | Mastectomy or Excision + Radiation. |
Evidence-based oncology decision support. Verify with clinical guidelines.