eosinophilic gastroenteritis, a disorder marked by infiltration of the mucosa of the small intestine by eosinophils, with edema but without vasculitis, and by eosinophilia of the peripheral blood. Symptoms, including abdominal pain, diarrhea, nausea, fever, and malabsorption, depend on the site and extent of the disorder. The stomach is also frequently involved. The disorder is commonly associated with intolerance to specific foods.
