Prospective Study for Molecular Biomarkers of Normal Nasopharyngeal Tissue

Prospective Study for Molecular Biomarkers of Normal Nasopharyngeal Tissue

The investigators collect nasopharyngeal epithelium samples from healthy individuals and analyze for biomarkers compared with tumor tissues from another clinical research project. The goal of this study is to identify molecular biomarkers for prediction of nasopharyngeal carcinoma.

Inclusion Criteria:

• Patients suspected of nasopharyngeal carcinoma but excluded by biopsy

Exclusion Criteria:

• Diagnosed as nasopharyngeal carcinoma during the follow-up period