High Grade Gastric Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** A gastric intraepithelial lesion characterized by the presence of neoplastic cells that are cuboidal with a high nucleus to cytoplasmic ratio, prominent nucleoli, significant architectural changes, and increased number of mitotic figures.

**Synonyms:** - High-Grade Gastric Glandular Intraepithelial Neoplasia - High-Grade Gastric Glandular Intraepithelial Neoplasia (Dysplasia) - High-Grade Gastric Intraepithelial Neoplasia (Dysplasia)