Background: High-risk human papilloma viruses (HPV) are reported to be significant independent risk factors for oral squamous cell carcinoma (OSCC). The prevalence of HPV in OSCC in a South African population sample was evaluated comparing three different HPV detection methods.
Methods: Tumour and adjacent morphologically normal oral mucosa of 59 resections of primary OSCC were evaluated for the presence of HPV using real-time polymerase chain reaction (PCR), conventional in situ hybridization (ISH), and a signal amplification ISH technique (Dako GenPoint).
Results: HPV18 DNA was detected in seven cases using real-time PCR. No positivity was found with the other two ISH techniques.
Conclusions: We support the view that HPV is probably unimportant in the pathogenesis of OSCC and hypothesize HPV detection techniques as the main reason for the positive results in many studies. Real-time PCR was confirmed as the most sensitive technique, but researchers are urged to incorporate strict internal controls when using this detection method.
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