NCIt synonyms : Esophageal Dysplasia; Intraepithelial Neoplasia of the Esophagus; Intraepithelial Neoplasia of Esophagus;
NCIt definition : 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);