Low Grade Esophageal Squamous Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** Esophageal squamous intraepithelial neoplasia characterized by architectural abnormalities and dysplasia that are confined to the lower half of the esophageal squamous epithelium.

**Synonyms:** - Esophageal Low Grade Squamous Intraepithelial Neoplasia - Esophageal squamous intraepithelial neoplasia (dysplasia), low grade - Low Grade Esophageal Squamous Dysplasia