This study analyzed 103 samples taken from squamous cell carcinoma in oropharyngeal area, 85 specimens taken from chronic inflammation of palatine tonsils, and 50 specimens of saliva from healthy persons (control group specimens), using techniques for detection of Helicobacter pylori DNA sequences (cagA gene, vacA gene, and fla gene). The gene discussed is S100A8; the disease is squamous cell carcinoma.