Researchers have developed a novel, non-invasive diagnostic method for nasopharyngeal carcinoma by analyzing DNA methylation biomarkers from bilateral nasal swabs processed automatically. This epigenetic screening approach, published in BMC Cancer, offers increased sensitivity and convenience compared to invasive procedures, potentially enabling earlier detection and improved patient outcomes. The method harnesses DNA methylation patterns associated with tumor presence to identify malignancy risk with high accuracy, suggesting significant promise for population screening and clinical application.