Esophageal Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** A neoplastic process characterized by the presence of architectural abnormalities and dysplasia of the esophageal epithelium. It is a pre-invasive lesion that is classified as low or high grade and has a significant risk of progression to invasive esophageal carcinoma.

**Synonyms:** - Esophageal Dysplasia - Intraepithelial Neoplasia of Esophagus - Intraepithelial Neoplasia of the Esophagus