Foreign body impaction as presentation of eosinophilic esophagitis.

Esophageal foreign body is a frequent pediatric presentation, and eosinophilic esophagitis (EoE) is an important underlying disease. To determine characteristics common in the presentation of esophageal foreign body indicative of underlying EoE and reach a recommendation for the appropriate scenario in which to obtain esophageal mucosal biopsy, 312 pediatric esophageal foreign bodies requiring operative removal were reviewed. Patients older than 18 years or with a known history of esophageal surgery or pathology were excluded. Eligibility criteria were met in 271 cases. Twenty-seven patients were biopsied, and 18 were diagnosed with EoE. The following factors were identified in the EoE population: food impaction (89%), older age (average 12.2 years), male sex (78%), atopic disease (61%), previous esophageal foreign body or frequent dysphagia (83%), and endoscopic abnormalities (100%). These factors are all associated with an underlying diagnosis of EoE, and patients meeting these criteria should be strongly considered for intraoperative esophageal mucosal biopsy.