Risk-based stratification in head and neck mucosal melanoma

Area of Science:

• Oncology
• Melanoma Research
• Surgical Oncology

Background:

• Head and neck mucosal melanoma (HNMM) is a rare, aggressive cancer with high metastatic potential.
• Current staging relies on HNMM-specific (mmTNM) or primary site-specific (sccTNM) systems.
• Accurate risk stratification is crucial for effective patient management.

Purpose of the Study:

• To evaluate the prognostic value of both the mmTNM and sccTNM staging systems for HNMM.
• To determine if combining these systems improves risk stratification.
• To identify optimal classification for HNMM patient management.

Main Methods:

• Retrospective cohort study of 96 HNMM patients treated between 2000 and 2017.
• Patients were restaged using both mmTNM and sccTNM classifications.
• Prognostic analysis correlated staging systems with overall survival (OS) and progression-free survival (PFS).

Main Results:

• Both mmTNM and sccTNM correlated with OS, PFS, and distant metastasis-free survival.
• Paranasal sinus tumors showed significantly lower survival than nasal cavity tumors (p < 10⁻⁴).
• Combining mmTNM and sccTNM, new stages (mmT3A, mmT3B) demonstrated superior risk stratification (p < 10⁻⁴).

Conclusions:

• Both mmTNM and sccTNM are suitable for risk-stratifying sinonasal mucosal melanomas.
• Combining both staging systems enhances prognostic accuracy for HNMM.
• Integrated staging improves risk stratification for improved patient outcomes.