Vitiligo: concomitant autoimmune and allergic diseases.

Introduction: Vitiligo is a chronic skin condition caused by progressive cutaneous hypomelanosis. Aim: The aim of the study was to determine its epidemiology and clinical aspects. As considerable progress has been made in understanding of the pathogenesis of vitiligo and its classification as an autoimmune disease, the paper pays particular attention to coexisting autoimmune or atopic diseases. Material and methods: The study included 55 patients attending the Diagnostic and Treatment Center of Skin Diseases in Lodz. Data were collected during outpatient dermatological consultation. Results: The most common type of vitiligo was nonsegmental (85.5%) followed by segmental (12.7%) and unclassified (2.1%). The first skin lesions were mostly located on the hands (45.5%) and face (38.2%). Older patients with higher body mass index tended to demonstrate a higher body surface area. Of the patients, 63.6% demonstrated an autoimmune or atopic comorbidity, the most common of which were type 1 diabetes mellitus (18.2%), psoriasis (16.4%) or Hashimoto's thyroiditis (14.5%). Location on the face was associated with a significantly greater incidence of autoimmune or atopic co-morbidities. Conclusions: A facial location may serve as a predictive factor for other autoimmune or atopic diseases in vitiligo patients. Determining clinical factors in vitiligo patients which could be associated with a higher risk of autoimmune comorbidities may allow for their early diagnosis and suitable treatment. [ABSTRACT FROM AUTHOR]