Telangiectatic Palmoplantar Keratoderma in Systemic and Subacute Lupus Erythematosus

Context: Palmoplantar keratoderma (PPK) associated to livid telangiectatic erythema during systemic lupus erythematosus (SLE) is a rare phenomenon seldom reported in literature. To our knowledge no case has been described in subacute cutaneous lupus erythematosus (SCLE) so far. Pathogeny and etiologic origin are not clear: it could be no-specific cutaneous manifestation of SLE, verrucous chilblain lupus, lichen planus, discoid lupus erythematosus lesions, overlap syndrome or coexistence of both diseases. Objective: 1. Determine clinical immunological and histopathological features of patients with PPK and livid telangiectatic erythema-associated suffering from SLE and SCLE 2. Describe the different therapeutics used and efficacy assessment Methods: Multicentric retrospective descriptive study reporting 14 patients with SLE or SCLE suffering from an acral livid erythematosus keratoderma, with clinical data regarding lupus erythematosus and acral keratoderma, immunological blood samples findings and histopathological results of keratoderma and livid erythema biopsies with direct immunofluorescence if performed. The treatments set down in order to heal are noted followed by efficacy assessment: total failure, partial remission, complete remission.