Comparing the i31-SLNB and the MIA Nomogram for Sentinel Lymph Node Biopsy Positivity Prediction in Cutaneous Melanoma: A Prospective Cohort Analysis - Scorecard - MDSpire

Comparing the i31-SLNB and the MIA Nomogram for Sentinel Lymph Node Biopsy Positivity Prediction in Cutaneous Melanoma: A Prospective Cohort Analysis

  • By

  • Rohit Sharma

  • Rajan P. Kulkarni

  • Richard Essner

  • Andrew Ward

  • Andrew H. Lewis

  • Shireen Guide

  • J. Michael Guenther

  • June 23, 2026

  • 0 min

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Clinical Scorecard: Evaluating the i31-SLNB and MIA Nomogram for Predicting Sentinel Lymph Node Biopsy Positivity in Cutaneous Melanoma: A Prospective Cohort Study

At a Glance

CategoryDetail
ConditionCutaneous Melanoma
Key Mechanismsi31-SLNB combines 31-GEP score with clinicopathologic factors to predict SLN positivity.
Target PopulationPatients with cutaneous melanoma being considered for sentinel lymph node biopsy.
Care SettingProspective, multicenter clinical study.

Key Highlights

  • Patients who avoid SLNB based on i31-SLNB results have no recurrences at a median of 2 years.

Guideline-Based Recommendations

Diagnosis

  • SLNB is a primary component of the AJCC staging system for cutaneous melanoma.

Management

  • Avoid SLNB if risk of positive SLN is < 5%; discuss if risk is 5-10%; offer if risk is > 10%.

Monitoring & Follow-up

  • Patients who avoid SLNB based on i31-SLNB should have low recurrence rates.

Risks

  • Surgery-associated morbidities include infection, seroma, hematoma, and lymphedema.

Patient & Prescribing Data

Patients with cutaneous melanoma undergoing SLNB.

i31-SLNB aids in decision-making to avoid unnecessary SLNB procedures.

Clinical Best Practices

  • Utilize i31-SLNB for personalized risk assessment in SLNB decision-making.
  • Consider clinicopathologic factors alongside i31-SLNB results.

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