Objective: The concomitance of psoriasis and high IgE levels in the same patient, possibly associated to allergies, should not come as a surprise anymore, because both diseases are characterised by an immunological disorder, involving cytokines and other inflammatory mediators, with massive activation of the cell-mediated immunity.
Materials and methods: During a period of 18 months, using a radio-immunologic method, we assessed the level of IgE in patients with severe psoriasis who were not responding to the common therapy.
Results: Patients with severe psoriasis had high levels of IgE.
Conclusions: IgEs have an important role in pathogenesis of psoriasis and atopic dermatitis, but the mechanism is not yet clear.