The esophageal biopsy 'pull' sign: a highly specific and treatment-responsive endoscopic finding in eosinophilic esophagitis (with video)

摘要

Background and Aims: Esophageal biopsy specimens from patients with eosinophilic esophagitis (EoE) can feel firm, with resistance felt when pulling the forceps to obtain the tissue sample. We aimed to assess the diagnostic utility of the esophageal biopsy "pull" sign and determine its histologic associations and response to treatment.