Cite this article as: Han S, Yin S, Sun Z, Ren S, Wei Z. A rare case of huge gastric adenoma composed of pyloric gland adenoma and foveolar-type adenoma with serrated dysplasia cured by endoscopic submucosal dissection. Turk J Gastroenterol. Published online April 21, 2025. doi 10.5152/tjg.2025.24799.