• S Ingen-Housz, E Venutolo, L Pinquier, B Cavelier-Balloy, L Dubertret, and B Flageul.
• Service de Dermatologie 1, Hôpital Saint-Louis, 1, avenue Claude-Vellefaux, 75475 Paris Cedex 10.
• Ann Dermatol Vener. 2000 Aug 1; 127 (8-9): 735-9.

BackgroundRelapsing polychondritis is a rare systemic disease. Skin involvement occurs in 20 to 50 % of cases. Cutaneous signs are most often related to a leukocytoclastic vasculitis. Association of relapsing polychondritis with neutrophilic dermatosis have also been reported. We report the first case of an erythema annulare centrifugum-like dermatosis associated with relapsing polychondritis, with a two years delay between both conditions.Case ReportA 74 year-old man was seen for papulo-erythematous centrifugal annular lesions that appeared 18 months earlier in a context of bad general conditions. Biological tests were normal. Several skin biopsies were performed, showing at the beginning features of drug reaction and then of lupus-lichen. Treatment with hydroxychloroquine, topical corticosteroids, dapsone and thalidomide were unsuccessful. In the following months, the patient developed fever and relapsing bronchitis. Suddenly, a chondritis of the ears appeared, leading to the diagnosis of relapsing polychondritis. All the cutaneous, chondritic and respiratory signs disappeared with oral steroid therapy. Two years after the diagnosis of relapsing polychondritis the patient developed refractory anemia.DiscussionCutaneous signs of relapsing polychondritis are frequent and may occur several months or years before the chondritis. They are polymorphous, but to the best of our knowledge, a clinical aspect of erythema annulare centrifugum has never been described. Our observation recalls the sometimes long delay between the cutaneous and the chondritic signs of relapsing polychondritis and the high frequency of dysmyelopoiesis in relapsing polychondritis with cutaneous involvement.

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