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Open Access Research article

Lichen planus and Hepatitis C: a case-control study

S Zahra Ghodsi1*, Maryam Daneshpazhooh1, Mohammad Shahi2 and Ali Nikfarjam3

Author Affiliations

1 Department of Dermatology Tehran University of Medical Sciences Razi Hospital Vahdat Islami Square 11996 Tehran Iran

2 Private dermatologist Razi Hospital Vahdat Islami Square 11996 Tehran Iran

3 District Health Center Prevention and Disease Control Sector Tehran University of Medical Sciences Nasr Ave. 24 Str. No 35 14488 43117 Tehran Iran

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BMC Dermatology 2004, 4:6  doi:10.1186/1471-5945-4-6

Published: 20 May 2004

Abstract

Background

The association of lichen planus with hepatitis C (HCV) has been widely reported in the literature. However, there are wide geographical variations in the reported prevalence of HCV infection in patients with lichen planus. This study was conducted to determine the frequency of hepatitis C in Iranian patients with lichen planus at Razi hospital, Tehran.

Methods

During the years 1997 and 1998, 146 cases of lichen planus, 78 (53.1%) women and 69 (46.9%) men were diagnosed. They were diagnosed on the basis of the usual clinical features and, if necessary, typical histological findings. The patients were screened for the presence of anti-HCV antibodies by third generation ELISA and liver function tests. We used the results from screening of blood donors for anti HCV (carried out by Iranian Blood Transfusion Organization) for comparison as the control group.

Results

Anti-HCV antibodies were detected in seven cases (4.8%). This was significantly higher than that of the blood donors' antibodies (p < 0.001). The odds ratio was 50.37(21.45–112.24). A statistically significant association was demonstrated between erosive lichen planus and HCV infection. Liver function tests were not significantly different between HCV infected and non-infected patients.

Conclusion

HCV apears to have an etiologic role for lichen planus in Iranian patients. On the other hand, liver function tests are not good screening means for HCV infection.

Keywords:
Lichen planus; Hepatitis C; Epidemiology