Role of Endoscopy in Diagnosing GERD & Barrett’s Esophagus

confluent but not circumferential erosions or exudates near the Z-line. Stage 3: confluent and circumferential erosions and exudative lesions with involvement of the wall but without stricture. Stage 4: chronic fibrosis, esophageal ulcer or stricture. Stage 5: Barrett’ esophagus. Hetzel Dent Classification. Grade 0: normal mucosa. Grade 1: ................
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