A rare benign gastrointestinal disease characterized by the presence of abnormal and nonspecific gastro-intestinal (GI) manifestations, associated with an eosinophilic infiltration of the GI tract, which can affect several segments and involve several layers within the GI wall.

A compact, organized collection of mature mononuclear phagocytes, which may be but is not necessarily accompanied by accessory features such as necrosis.