RESUMEN
Gastric cancer is the most frequent cancer seen in Korea. The development of diagnostic procedures such as endoscopy has contributed to the early diagnosis and subsequent treatment of gastric cancer. Early gastric cancer has been defined as a carcinoma that is limited to the gastric mucosa or submucosa, regardless of the presence of lymph node metastasis. The prognosis of gastric cancer mainly depends on the depth of invasion and the lymph node metastasis. However it is difficult to distinguish large type I early gastric cancer from Borrmann type 1 advanced gastric cancer when the distinction is based on the macroscopic appearance. We experienced two cases of huge polypoid early gastric cancer. One case was treated by operation, and the other case was treated by endoscopic mucosal resection. We report here on two cases of huge polypoid early gastric cancer mimicking advanced gastric cancer.