—  SHORT COURSE #22  — Diagnostic Problems in GI Pathology Lisa Yerian, John Hart and Amy Noffsinger Click here to view (or print) handout in single page format. (39.1 MB) Note: Any slides will be printed in color. Click here to view (or print) black and white handout. (14.3 MB) Note: Text will be in single page format and any slides will be in 6-per-page format. Case #1 - Significance of Intraepithelial Lymphocytes in the Small Bowel Case #2 - Interpretation of Subepithelial Collagen Thickening Case #3 - Diagnosis of Esophageal Eosinophilia Case #4 - Diagnosis of Epithelial Dysplasia in Barrett's Esophagus Case #5 - Diagnosis and Reporting of Serrated Colonic Lesions Case #6 - Invasive Adenocarcinoma Versus Benign Misplaced Epithelium in a Colonic Adenoma