Mucosal Melanoma of the Head and Neck

This bidirectional cohort study (retrospective + prospective) focuses on three key challenges in oral mucosal melanoma (OMM): clinical staging based on depth of invasion (DOI), molecular subtyping, and precision therapy. By integrating DOI-driven T-stage reclassification, genomic profiling, and longitudinal follow-up, we aim to build a population-specific, high-quality evidence resource to support refined staging, CDK4-targeted treatment, and prognostic modeling for Chinese OMM patients.

Sinonasal mucosal malignant melanoma (SNMM) is a nasal and paranasal sinus malignancy with a low incidence and extremely poor prognosis, exhibiting specificity in Asian populations. For resectable SNMM, the efficacy of neoadjuvant immunotherapy is unclear. This prospective clinical study aims to explore the survival prognosis of neoadjuvant immunotherapy combing radiochemotherapy after Endoscopic Surgery for resectable SNMM.

This is an open-label, single center, one cohort, non-randomized, phase II study. The aim is to evaluate the efficacy and safety of the combination of hypofractionated radiotherapy (HRT) and pembrolizumab on local tumor control in mucosal melanoma patients. Treatment effect will be compared with historical radiation therapy-alone control data.