Esophageal histology. An endoscopy with biopsies was performed as part of routine medical care in all subjects. A minimum of two biopsies were obtained from the lower one-third of the esophagus in ...

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 ...