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Lymphocytic infiltration of the skin of Jessner-Kanof is a dermatitis characterized by papules or erythemato-edematous plaques with a fluctuating course of improvement and worsening mainly affecting the head, the neck and the upper part of the trunk. The lesions are usually asymptomatic. However, they may be associated with mild itching or burning. It worsens with photo exposure but also comes in winter. Histologically, it is characterized by a dense perivascular and periadnexal lymphocyte infiltrate without or with little involvement of the epidermis. According to some Authors, there is not enoug clinical and histological data to distinguish lymphocyte infiltration of the skin from lupus erythematosus tumidus (1, 2).
Topical anti-inflammatory therapy, which is indicated in the mild forms, may be associated with oral corticosteroids or antimalarials in the most severe forms.