EPIDEMIOLOGICAL, CLINICAL, AND ETIOLOGICAL PROFILE OF HYPEREOSINOPHILIA IN A DERMATOLOGY DEPARTMENT: A SERIES OF 115 CASES

Background: The eosinophil granulocyte is a key cell of the immune system that plays multiple essential roles in numerous diseases. In dermatology, two distinct entities are recognized: eosinophilic dermatoses proper and dermatoses associated with eosinophilia. Materials and Methods: We present a 5-year retrospective study including all patients admitted to our department who presented with peripheral blood eosinophilia. Results: A total of 115 cases met the inclusion criteria. Eosinophilic dermatoses accounted for 9% of cases, where as dermatoses associated with eosinophilia represented 91%, distributed as follows: adverse drug reactions (37%), eczema (16%), prurigo (14%), bullous pemphigoid (10%), psoriasis (5%), cutaneous lymphomas (3%), cutaneous parasitoses (3%), and immunodeficiencies (3%).