🔍 Updated Guide: Prague Criteria for Barrett's Esophagus
Key measurements that matter:

C: Circumferential extent
M: Maximum extent of metaplasia

Clinical pearls:
🔸 Accurate measurement is crucial for risk stratification
🔸 Impacts surveillance intervals
🔸 Guides treatment decisions

Pro tip: Use landmarks carefully - measure from top of gastric folds to squamocolumnar junction