background and aims. lichen planus is a relatively common chronic mucocutaneaous disease with an unknown cause, and is considered a manifestation of cell-mediated immune response. hepatitis c virus (hcv) and its subgroups have been associated with lichen planus in different geographic locations. the present study was undertaken to evaluate the prevalence of hcv antibody in patients with lichen ...

background and aims. oral lichen planus is a relatively common chronic oral mucosal disease of unknown etiology. regarding numerous studies on the immunologic factors involved in the etiology of lichen planus, the present study evaluated the serum interleukin-17 (il-17) level in patients with erosive and non-erosive oral lichen planus. materials and methods. this descriptive analytical study in...

Lichen planus pemphigoides (LPP) is a rare autoimmune blistering disease that is characterized by the development of vesico-bullous skin lesions in patients with lichen planus. The histopathology of LPP reveals a sub_epidermal blister with linear deposition of IgG and /or C3 along the dermal_epidermal junction (DEJ) upon direct immunofluorescence (DIF). We hereunder describe a case of lichen pl...

Background: Lichen planus has various clinical and epidemiologic features in different countries. Objectives: To determine clinical and epidemiologic patterns of lichen planus in dermatology department of Hamadan Sina Hospital during a ten-year period. Patients and Methods: This retrospective descriptive study was performed on 363 patients (Including 190 females and 173 males) suffered fr...

The true incidence rate for Lichen Sclerosus is unknown, as this disease often goes undiagnosed [9]. However, rates between 1 in 30 and 1 in 1,000 have been reported [3,10,11]. Lichen Sclerous can affect men and women at any age. Hormonal changes may exacerbate the disease and therefore the onset of symptoms is noted more frequently at menarche or in post-menopausal woman [12-14]. Women are 6-1...

Lichen sclerosus is an uncommon inflammatory dermatosis with preferential involvement of the urogenital region. The extragenital involvement is uncommon and is characterized by small rounded macules or papules, pearly white in color. The coexistence of lichen sclerosus and scleroderma plaques in most cases with extragenital location has been reported in the literature. We report a case of liche...

Background and aims. Oral lichen planus is a common chronic inflammatory disease of the oral mucosa with malignant potential, pathogenesis of which is not still well known. Free radicals and reactive oxygen species can play an important role in the pathogenesis of oral lichen planus. The aim of this study was to investigate salivary oxidative stress and antioxidant systems in patients with oral...

BACKGROUND Lichen sclerosus is a common acquired inflammatory disorder of skin and mucous membranes. The aetiology is unknown, although HLA-subtype susceptibility and high rates of other autoimmune disorders suggest that autoantibodies to specific mucocutaneous antigens are involved. The clinicopathological similarities between lichen sclerosus and lipoid proteinosis, which results from mutatio...

Over the last few years, dermoscopy has been shown to be a useful tool in assisting the noninvasive diagnosis of various general dermatological disorders. In this article, we sought to provide an up-to-date practical overview on the use of dermoscopy in general dermatology by analysing the dermoscopic differential diagnosis of relatively common dermatological disorders grouped according to thei...