Behçet's disease in black skin. A retrospective study of 50 cases in Dakar.

Introduction: Although Behçet's disease is well-documented in Eastern populations, epidemiologic data in Sub-Saharan African population is scarce. The aim of this study was to define the epidemiologic and therapeutic aspects as well as clinical course of Behçet's disease in African black population.

Results: The study included 50 patients with Behçet's disease. The average age was 32 (18-67) years. A total of 31 patients were men and 19 were women. Two patients had a positive family history of Behçet's disease. The oral and genital aphthous lesions were present in 100% of patients. The pathergy test was positive in 16 patients (32%). Following skin conditions were observed: pseudofolliculitis in 15 patients (30%), acneiform papules in 6 patients (12%), erythema nodosum in 4 patients (8%) and leg ulcers in one patient. Ocular involvement was reported in 22 patients (44%) and joint involvement in 20 patients (40%). Neurological abnormalities were noted in 12 patients (24%). Gastrointestinal involvement with wide and deep ulcerations in the ileocecal region was observed in a patient. As treatment, a combination of oral corticosteroids and colchicine was used in 97% of our patients. Thalidomide was introduced in 3 patients and anticoagulation treatment in 19 patients. Clinical improvement was noted in 25 patients (50%), recurrence in 14 patients (28%) and 3 patients were lost to follow (6%).

Conclusion: The Behçet's disease is not uncommon in black skin and generally affects young adults. Severe aphthous ulcers of the oral cavity and genital area are the most consistent finding.