cases, esophagus Week 34: Case 6 April 26, 2023 pathadmin 1. Presented by Belur Bhagavan, M.D. and prepared by Angelique W. Levi, M.D.A 72-year-old male with history of long segment Barrett's esophagus underwent surveillance endoscopy and biopsy of esophagus. Previous biopsies had shown areas of low-grade dysplasia. Endoscopy confirmed the presence of Barrett's mucosa but showed no evidence of ulceration, stricture or polypoid lesions.Marked regenerative atypiaWell differentiated adenocarcinomaHigh grade dysplasiaLow grade dysplasia 1. Presented by Belur Bhagavan, M.D. and prepared by Angelique W. Levi, M.D.A 72-year-old male with history of long segment Barrett's esophagus underwent surveillance endoscopy and biopsy of esophagus. Previous biopsies had shown areas of low-grade dysplasia. Endoscopy confirmed the presence of Barrett's mucosa but showed no evidence of ulceration, stricture or polypoid lesions.