label: Esophageal Intraepithelial Neoplasia
label_lc: esophageal intraepithelial neoplasia
description: "A lesion that is characterized by architectural and cytologic abnormalities of the esophageal epithelium, and carries a predisposition for progression to invasive carcinoma.  Intraepithelial neoplasia (dysplasia) of the esophagus is graded as low or high grade.  In this two-tier system, severe dysplasia and carcinoma in situ are included under the rubric of high grade intraepithelial neoplasia and may have the same clinical implications.  (WHO, 2000)"