1. Esophagus: Normal Lower Esophageal and Squamo- columnar Junction Mucosae

2. Esophagus: Normal Squamous Epithelium

3. Esophagus: Normal Squamo- columnar Junction

4. Esophagitis (Inflammation and Reactive Epithelial Changes of the Esophageal Mucosa) Has Many Causes

5. Reflux Esophagitis is the Culmination of Gastro-Esophageal Reflux-Induced Changes in Epithelial Cell Turnover

6. Esophagus: G-E Reflux - Changes in Epithelium and Vascular Papillae

7. Esophagus: G-E Reflux - Defenses Against Reflux-induced Injury

8. Esophagus: G-E Reflux - Symptoms and Endoscopic Findings in Reflux are NOT Predictive of Biopsy Findings

9. Esophagus: G-E Reflux - Heightened Epithelial Turnover in G-E Reflux is Shown by Increased Epithelial Tritiated Thymidine Labeling

10. Esophagus: G-E Reflux - Reflux- induced Epithelial Change Is a Consequence Of Increased Cell Turnover

11. Acute (Neutrophilic) Inflammation and Erosion In Severe Reflux Esophagitis

12. Severe Epithelial Reactive Changes with Eosinophils (EOS) in Gastroesophageal Reflux

13. Sequelae Of Prolonged G-E Reflux

14. Barrett’s Esophagus: Development And Anatomic Relationships

15. Endoscopic Landmarks In The GEJ Region: Normal Versus Barrett’s (Columnar-lined) Esophagus With Location Of Lower Esophageal Sphincter (LES)

16. Requirements For Diagnosis Of Barrett’s Esophagus

17. Barrett’s Esophagus: Gross Appearance

18. Barrett’s Esophagus Should Be Suspected And Confirmed By Biopsy When The Squamo- columnar Junction Is Displaced Or Highly Irregular

19. Barrett’s Mucosa (BM) With Submucosal Esophageal Gland (SMEG) Below Muscularis Mucosae (MM)

20. Barrett’s Mucosa: Distinctive (Specialized) Type