High Grade Esophageal Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** Esophageal intraepithelial neoplasia characterized by architectural abnormalities and dysplasia involving both the lower and the upper half of the esophageal epithelium. It includes moderate dysplasia and carcinoma in situ (severe dysplasia).

**Synonyms:** - Esophageal High Grade Intraepithelial Neoplasia - Esophageal High-Grade Dysplasia - Esophageal High-Grade Intraepithelial Neoplasia - Esophageal intraepithelial neoplasia, high grade