Lichen nitidus (LN) is an uncommon, usually asymptomatic cutaneous eruption characterized by the presence of multiple, small, flesh-colored papules. The epidemiologic and pathophysiologic characteristics of LN have not yet been defined. Furthermore, LN has rarely been described in association with other cutaneous diseases. We herein report 3 cases of LN associated with various cutaneous diseases, including lichen striatus, oral lichen planus, and psoriasis vulgaris.
Lichen Nitidus* ; Lichen Planus ; Lichen Planus, Oral ; Lichens ; Mouth ; Psoriasis

No abstract available.
Lichen Planus, Oral* ; Mass Screening*

No abstract available.
Lichen Planus, Oral* ; Mouth* ; Tacrolimus*

Humans ; Lichen Planus, Oral ; psychology

Oral lichen planus (OLP) is a painful chronic inflammatory condition, that is often resistant to many therapeutic approaches, including immunosuppressive agents. Topical tacrolimus has recently been recognized as a safe and effective remedy in the treatment of OLP. We, rerein, describe 3 patients with oral lichen planus, who showed a substantial improvement after the use of topical tacrolimus ointment (0.1%). This topical agent was well tolerated in all 3 patients and could be used an effective medicine in controlling oral lesions of lichen planus.
Humans ; Immunosuppressive Agents ; Lichen Planus ; Lichen Planus, Oral* ; Tacrolimus*

OBJECTIVETo evaluate the expression of CD4+, CD8+ T cells and cell apoptosis in oral lichen planus (OLP) and investigate the role and the relationship of immunological reaction and cell apoptosis in the pathogenesis of OLP2.

METHODSImmunohistochemical technique was used to study the expression of CD4+, CD8+ T cells in 27 OLP cases. TUNEL was used for detecting the cell apoptotic index (AI) in 17 OLP2 cases.

RESULTSThe expression of CD4+, CD8+ T cells were obviously elevated in lamina propria of OLP group compared with control group (P<0.05). There was a strong significance when compared the ration of CD4/CD8 in both group. AI was remarkably increased in epithelia cells and significantly decreased in lymphocytes in lamina propria in OLP cases compared with its expression in the control group respectively.

CONCLUSIONThe increased amount of CD4+, CD8+ T cells in lamina propria of OLP and the change ration of CD4/CD8 suggest that immune response is involved in the pathogenesis of OLP. The abnormal cell apoptosis plays an important role in the pathogenesis of OLP.

Humans ; Lichen Planus, Oral ; diagnosis ; therapy

Lichen planus is an unique, common inflammatory disorder that affects the skin, mucous membranes, nails and hair. Oral lichen planus is among the more common mucosal conditions with an unknown etiology. Lichen nitidus is an uncommon, usually asymptomatic cutaneous eruption that is characterized by the presence of multiple, small, flesh colored papules. Perforation in lichen nitidus is a rare phenomenon. Lichen nitidus is distinguished from lichen planus on both clinical and histologic grounds. However, the possibility that lichen nitidus represents a micropapular variant of lichen planus has never been definitively excluded. Herein, we report on a case of perforating lichen nitidus associated with oral lichen planus.
Hair ; Lichen Nitidus ; Lichen Planus ; Lichen Planus, Oral ; Lichens ; Mucous Membrane ; Nails ; Skin

OBJECTIVES: To examine the factors which affect the improvement or the recurrence of disease after intralesional steroid injection in patients with oral lichen planus (OLP). METHODS: Sixty-two patients diagnosed as OLP were treated with intralesion corticosteroid injection. To evaluate the objective severity of OLP, total severity score of OLP was assessed. To examine the factors affecting the therapeutic effect of intralesional steroid injection, factors were compared between the symptom-improved group and symptom-not-improved group. To assess the symptom of patients, patients filled in 10-cm visual analogue scale, along with an Oral Health Impact Profile-14. RESULTS: Symptoms improved in 50 patients (80.6%, symptom-improved group), but not in 12 patients (symptom-not-improved group). In a comparison between both group, OLP with lip involvement was the only variable which showed significant difference (P=0.008). Twenty-nine of 50 patients had recurrence of OLP (58%, recurrence group) and 21 of 50 patients did not have recurrence (42%, no-recurrence group). Statistically significant differences were not found between both groups. CONCLUSION: This study suggested that patients suffering from OLP with lesion on the lip might not be effective in treating with intralesional corticosteroid injection.
Humans ; Lichen Planus, Oral* ; Lip ; Oral Health ; Recurrence

Oral lichen planus (OLP) is a relatively common chronic inflammatory disease of uncertain etiology. OLP lesions rarely undergo spontaneous remission and have the potential to undergo malignant transformation. The risk of malignant transformation in OLP is estimated to be between 0.4% and 5.3%; two clinical studies in Korea reported the frequency of malignant change as 2.9% and 2.85%. However, to the best of our knowledge, there has been no individual case report in the Korean dermatological literature to date regarding the malignant transformation of OLP. Herein, we report the case of a 77-year-old Korean woman with long-standing OLP that underwent transformation to oral squamous cell carcinoma. This is the first well-documented case report of squamous cell carcinoma that developed from OLP.
Aged ; Biopsy ; Carcinoma, Squamous Cell* ; Female ; Humans ; Korea ; Lichen Planus ; Lichen Planus, Oral* ; Remission, Spontaneous