Esophageal histology showed increased intraepithelial eosinophils (52/HPF in the upper, 46/HPF in the middle and 62/HPF in the lower esophagus) and basal cell proliferation of greater than 50% of ...

The diagnosis requires demonstration of at least 15 eosinophils per high power field on esophageal histology, usually in the context of resistance to proton pump inhibitor treatment or a normal 24 ...