IGHE and eosinophilic esophagitis: In a prospective cohort of 89 patients with persistent anaphylactic cow’s milk allergy, 38.2% (95% confidence interval [CI]: 28.14–49.16%) had esophageal eosinophilia defined as > 15 eos/hpf with many being asymptomatic or having non-specific symptoms, leading the authors to suggest that EoE can be “silent” in patients with IgE-mediated food allergy even without OIT [148].