Human papillomavirus in retinoblastoma: A tertiary eye care center study from South India.

<bold>Purpose: </bold>This study is aimed to investigate the presence of Human papillomavirus (HPV) DNA in tumors obtained from sporadic retinoblastoma patients.<bold>Methods: </bold>One hundred six tumor tissues obtained from sporadic RB patients were analyzed for HPV infection by use of both seminested PCR and real-time quantitative PCR.<bold>Results: </bold>Of 106 RB patients, 55 were male and 51 were female. The mean age at diagnosis was 26.77 ± 15.36 (mean ± Std. dev) months. Almost all patients presented with leukocoria. Molecular investigation by different methods revealed no HPV positivity in any tumor genome.<bold>Conclusion: </bold>Our study demonstrates no association between HPV and RB, postulating HPV may not be a major risk factor in the etiology of RB. [ABSTRACT FROM AUTHOR]