in 1996 grinspan et al presented the association between primary hypertension and diabetes mellitus as grinspan syndrome. through various studies, researchers have noticed that epidermal lichen planus cells show enzymatic disorders as well as defective carbohydrate expression. therefore, it was assumed that there is a relationship between cells and hormones in metabolic actions. besides, some r...

A 69-year-old woman with a history of colon carcinoma, cirrhosis of the liver secondary to hepatitis C, and erosive oral lichen planus presented to the dermatology clinic for therapeutic options regarding a growing ulceration on her lower lip. In the past year, the ulceration had enlarged and she had begun to develop new, painful, shallow ulcerations in the oral mucosa. In addition, she complai...

Actinic lichen planus (ALP) is a distinct variant of lichen planus mainly involving teenagers with an Asian racial profile. Three clinical types of ALP have been described: annular, pigmented, and dyschromic. We report an ALP with unusual presentation in a 56-year-old woman with no relevant medical history, which was clinically suggestive of actinic keratosis. Histological findings refined the ...

Lichen planus pemphigoides (LPP) is a rare blistering disease with features of both lichen planus and bullous pemphigoid. LPP typically appears on the extremities and occasionally involves the oral mucosa. Herein, we describe a case of LPP of the vulva of an 80-year-old woman, an uncommon location for this disease process. This clinical scenario can be confused with a number of similarly appear...

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...

Many investigators have reported proliferation of terminal cutaneous nerves and upregulation of various neuropeptides (substance P, vasoactive intestinal polypeptide, calcitonin gene-related peptide) in psoriatic lesions. Nerve growth factor promotes growth of nerves and causes upregulation of neuropeptides like substance P and calcitonin gene-related peptide. In this study we investigated the ...

A 50-year-old man and 71-year-old woman presented to our clinic with unilateral, linear, erythematous, pruritic lesions along the lines of Blaschko. On the basis of clinical and histopathological findings, the lesions were diagnosed as lichen planus with a Blaschkoian distribution, which is a rare form of lichen planus. The patients were treated with topical corticosteroids and antihistamines.

Background: Lichen planus (LP) is a common inflammatory skin disease. Pathogenesis of LP includes two possible mechanisms; related or unrelated to antigen. Regarding different clinical features of cutaneous and mucosal types of LP, for the first time, we decided to perform a qualitative and quantitative study of immune cells in different types of cutaneous LP and in comparison with normal skin....