CONCLUSION
The prevalence of HPV detected in inverted papilloma in our patients is
34%. Our results support that HPV infection is an aetiological factor
in sinonasal inverted papilloma. A high detection rate of a high-risk
HPV type (67%) was observed in patients with inverted papilloma with
malignant transformation. A high-risk HPV plays a role in the
oncogenesis of sinonasal inverted papilloma. Further studies should be
conducted to further elaborate this relationship.