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Giornale Italiano di Dermatologia e Venereologia 2000 August;135(4):491-5

Copyright © 2000 EDIZIONI MINERVA MEDICA

language: Italian

Chronic lichenoid keratosis. Report of two cases

Betto P., Gennari E., Trevisan G.

Azienda Ospedaliera di Vicenza Divisione di Dermatologia (Primario: Prof. F. Torregrossa)


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Two cases of chronic lichenoid keratosis (clk) in two blake patients are reported. The former case concerns a man who was born in 1959. He came to Italy in 1986. The dermatosis manifested itself through keratotic papules and multiple black-bluish nodules. These lesions showed themselves as developing poussées which spread outwards from the trunk, into the limbs in the palms and on the face; psoriasiform lesions were present on the palms and soles. Findings of a biopsy specimen proved it to be characteristic of clk. The latter case concerns a man who was born in 1953 who had been in Italy since 1990 and HIV-positive since 1993. The patient showed keratotic papular-nodular lesions on the trunk and, afterwards on the limbs. Psoriasiform lesions were present on the palms and soles. The biopsy of the papula was compatible with clk. The occurrence of clk associated with AIDS has not previously been reported. This clinical entity was described for the first time by Kaposi in 1895. It was considered as a variant of lichen ruber planus. This dermatosis is very rare, chronic and progressive. It has unknown etiology and it is difficult to classify nosologically.

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