IGHE and eosinophilic esophagitis: We are aware of the limitations of assumptions based on one case only, but we report our experience because in our knowledge this is the first case of EoE treated with omalizumab for so a long period (18 months) and it may help to elucidate the pathophysiology of EoE and to select patients affected with EoE that could benefit of anti-IgE treatment.