Liquid Biopsy in Oral Cancer Diagnosis: A Narrative Review of Emerging Diagnostic Tools

Abstract

Oral cancer, which originates in the oral cavity tissues, ranks as the eighth most common cancer globally, contributing to high mortality rates due to its often late detection. Although tissue biopsy remains the conventional method for diagnosis, it is invasive. Recently, liquid biopsy has emerged as a non-invasive diagnostic alternative. This method evaluates the tumor and its surrounding microenvironment by analyzing biomarkers found in bodily fluids such as blood, saliva, urine, and breast mi

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