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Lichen planus and hepatitis c virus infection: an epidemiologic study

The reported prevalence of hepatitis C virus (HCV) infection in patients with lichen planus (LP) shows variations from different regions. The aim of this study was to investigate the prevalence of HCV infection in patients with LP, in Diyarbakir region of Turkey. A total of 128 patients with LP and 128 healthy controls were detected for HCV infection, using a third generation enzyme‐linked immunosorbent assay. Eight of 128 patients (6.25%) with LP were found to have anti‐HCV antibodies, whereas only one patient (0.78%) in control group was found to have anti‐HCV antibodies. A statistically significant difference was found between LP and control group (p < 0.001). In conclusion, the coexistence of HCV infection and lichen planus is more than coincidental, and it is appropriate to screen all patients with lichen planus for HCV infection.