The purpose of this study is to conduct a translational study in patients with primary eosinophil associated gastrointestinal disorders [EGID] (e.g. eosinophilic esophagitis eosinophilic gastritis, eosinophilic enteritis [EE], eosinophilic colitis, and eosinophilic gastroenteritis [EGE]) with the aim of developing a data bank containing pertinent patient demographic information, tissue samples, and DNA, which will facilitate research on the pathophysiology of inflammatory disorders and the development of a verified successful clinical treatment program.

Patients with an eosinophil associated gastrointestinal disorder (EGID), family members of patients with EGID, or normal controls.

Patients diagnosed with an eosinophilic disorder and patients without an eosinophilic disorder to serve as normal controls