Case Report: A rare hyperplastic polyp with synchronous high-grade intraepithelial neoplasia in both glandular and squamous epithelium in autoimmune gastritis
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A 68-year-old man came to evaluate a gastric polyp discovered during a routine gastroscopy. After endoscopic mucosal resection, pathological findings confirmed that it's a hyperplastic polyp. Notably, squamous metaplasia was observed within the hyperplastic p... ...
