Investigation of Human Papillomavirus (HPV) and Epstein-Barr Virus (EBV) in antrochoanal polyps.

ABSTRACT

OBJECTIVES/HYPOTHESES This study aimed to investigate the presence of HPV (HPV types 11 and 16) and EBV in antrochoanal polyps and to contribute to the current literature in this regard. STUDY DESIGN: A case-control study. METHODS: A total of 100 patients (including 43 patients undergoing surgery for antrochoanal polyp, 27 patients undergoing surgery for nasal polyp, and 30 patients undergoing surgery for hypertrophic inferior turbinate) were included in this study. DNA was isolated from formalin-fixed, paraffin-embedded samples with the aid of the Bioneer's AccuPrep Genomic DNA Extraction Kit. In the obtained genomic DNAs, while the detection of HPV DNA was performed using the nested-PCR method, the detection of HPV types 11/16 and EBV DNA was performed using the RT-PCR method. RESULTS: The mean age of the patients with antrochoanal polyp was 26.7 ±â€¯15.4 years (range 7-70). There were 20 (46.5%) women and 23 (53.5%) men in the antrochoanal polyp group. HPV DNA was positively detected using the nested-PCR method in 14 (32.6%) of the patients with antrochoanal polyp and in 3 (11.1%) of the patients with nasal polyp. HPV DNA was not detected in the hypertrophic inferior turbinate group (control group). There was a statistically significant difference between all groups in terms of HPV DNA positivity. In the antrochoanal polyp group, 2 patients had HPV 11 positivity and 12 patients had HPV 16 positivity. In the nasal polyp group, 1 patient had HPV 11 positivity and 2 patients had HPV 16 positivity. EBV DNA was positively detected in 16 (37.2%) of the patients with antrochoanal polyp, in 11 (40.7%) of the patients with nasal polyp and in 8 (26.7%) of the patients with hypertrophic inferior turbinate, respectively. There was no statistically significant difference between the groups in terms of EBV DNA positivity. CONCLUSIONS: This study demonstrates that there is a need for further studies investigating the presence of viruses in antrochoanal polyps.