NCIt synonyms : Barrett's Adenocarcinoma; Adenocarcinoma Arising in Barrett's Mucosa; Barrett s Adenocarcinoma;
NCIt definition : An adenocarcinoma arising from Barrett metaplastic epithelium in the esophagus. There
is evidence supporting the idea that the Barrett adenocarcinomas develop through a
stepwise progression through intestinal metaplastic epithelium to epithelial dysplasia
to malignancy. Adenocarcinomas arising in the setting of Barrett esophagus are typically
papillary and/or tubular. In terms of grading, they are well or moderately differentiated
adenocarcinomas.;