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Published on: April 25, 2025
Hepatitis C virus infection and lichen planus: a systematic review with meta-analysis
G Lodi1, R Pellicano, M Carrozzo
1Unita di Medicina e Patologia Orale, Dipartimento di Medicina, Chirurgia e Odontoiatria, Università degli Studi di Milano, Italy.
Objective:
Hepatitis C virus (HCV) is one of the major causes of chronic liver disease worldwide but its morbidity is also due to a variety of extra-hepatic manifestations including mixed cryoglubulinemia, non-Hodgkin lymphoma, diabetes, porphyria cutanea tarda and lichen planus. The aims of this study were to conduct a systematic review and a meta-analysis on the prevalence of HCV in lichen planus patients and on the prevalence of lichen planus in chronic HCV infection.
Materials And Method:
Bibliographic searches were conducted in several electronic databases. Pooled data were analysed by calculating odds ratios, using a random effects model.
Results And Conclusions:
Thirty-three studies comparing the seroprevalence of HCV in lichen planus patients and six reporting the prevalence of lichen planus in patients with HCV infection were included in the meta-analysis. The summary estimate showed that LP patients have significantly higher risk (odds ratio 4.85; 95% confidence interval 3.58-6.56) than controls of being HCV seropositive. A similar odds ratio of having lichen planus was found among HCV patients (4.47; 95% confidence interval 1.84-10.86). Sub-analyses indicated that variability of HCV/lichen planus association seemed only partially depending on geographic effect.
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