Hypermucinous, Goblet Cell-Deficient and Crypt Cell Dysplasias in Inflammatory Bowel Disease are Often Associated with Flat/Invisible Endoscopic Appearance and Advanced Neoplasia on Follow-Up. - Choi, Won-Tak; Salomao, Marcela; Zhao, Lei; Alpert, Lindsay; Setia, Namrata; Liao, Xiaoyan; Drage, Michael G; Westerhoff, Maria; Cheng, Jerome; Lauwers, Gregory Y; Ko, Huaibin Mabel (Journal of Crohn's & Colitis, 2022)