Case of keratosis lichenoides chronica

Abstract

It has been reported that the presence of lichenoid papules, linear keratotic ridges and erythemotosquamous plaques are essential for making a diagnosis of KLC. 4 Seventy-five percent of KLC patients have facial lesions which resemble either seborrhea-like dermatitis or rosacea and such facial lesions are helpful for making a diagnosis of KLC. The oral cavity, palms, soles, finger, toe and nails are sometimes affected. Histologically, many cases of KLC show acanthosis and hyperkeratosis with focal parakeratosis, a band-like lymphocyte infiltrate in the upper dermis, which is associated with focal vacuolization of the basal layer. 5 We herein describe a 69-year-old male with KLC who was treated by cyclosporin, electron beam therapy and etoposide with some effectiveness.A 69-year-old male presented with erythema on the face, the back of his hands, extremities and trunk from 1 year prior. He underwent medical examination and was referred to the department of dermatology of our hospital. A skin examination revealed a bean-sized erythema with hyperkeratosis which were red in color, demonstrated an irregular margin and were scattered over the extremities and trunk (Fig. 1a). They tended to stick to each other and were arranged in a reticular pattern. On the back of his hands, the erythema was slightly elevated with severe scaling. Linear keratotic ridge was seen on the back of his finger. A maculopapular erythema was observed with desquamation on the nose, perioral area and the lips (Fig. 1b). In addition,