University of North Carolina (UNC) Barrett's Esophagus and Esophageal Cancer Biorepository

"* 1 10mL red tube and 1 8.5mL yellow tube for serum, plasma, and buffy collection~* Up to 10 research-specific biopsies obtained from the esophagus during the routine care EGD.~* Four biopsies will be taken from the midpoint of the current BE (or midpoint of previous BE if the patient has already received ablation for previous BE),~* Two biopsies from normal squamous epithelium, and~* One biopsy from each area of esophageal nodularity seen during the procedure~* Pathology slides from routine care biopsies taken during the enrollment procedure, as well as retrospective pathology slides from routine care biopsies taken prior to enrollment on the study.~* Up to 4 cytology brushes during the procedure."