Proliferative verrucous leukoplakia and its tumor markers: Systematic review and meta-analysis.

Rintala, Mirjami; Vahlberg, Tero; Salo, Tuula; Rautava, Jaana · Head Neck · 2019

meta_analysis · Level I

Where this comes from

Abstract

The aim was to update information on oral proliferative verrucous leukoplakia (PVL), a disease of verrucous-like lesions with high risk of malignancy, and its biomarkers. A systematic search of literature on PVL and its biomarkers showed 22 biomarkers that were investigated in 19 papers. A meta-analysis was possible for human papillomavirus (HPV), aneuploidy, Ki-67, and p53. Aneuploidy was found consistently (I<sup>2</sup> = 0%, P = 0.61) in 92% (95% CI 80%-99%) of the PVL cases. P53 positivity prevalence was 27% (95% CI 15%-40%) in two available studies (I<sup>2</sup> = 0%, P = 0.64). With HPV and Ki-67, the most outlying studies needed to be removed and after that the pooled HPV positivity prevalence (I<sup>2</sup> = 24%, P = 0.27) was 5% (95% CI 0%-14%) and for Ki-67 (I<sup>2</sup> = 9%, P = 0.33) 14% (95% CI 6%-26%). With the evidence of the current literature, aneuploidy could value as a biomarker of PVL but should be further validated.

Medical subject headings