Since the introduction of the allergen elimination combined with antiallergic treatment no further episodes of significant gastrointestinal bleeding occurred and, noteworthy, the complete healing of the ulcers within the upper GIT was accompanied by a significant fall in serum IgE, demonstrating ongoing remission of local gastrointestinal allergy, which has also most likely triggered EG (Figure 4). Here, IGHE is linked to gastrointestinal allergy.