Fig. 1. Los Angeles classification for grading erosive esophagitis. (A) Grade A: one or more mucosal breaks no longer than 5 mm. (B) Grade B: one or more mucosal breaks longer than 5 mm. (C) Grade C: one or more mucosal breaks that are continuous between the tops of 2 or more mucosal folds involving < 75% of the circumference. (D) Grade D: one or more mucosal breaks involving ≥ 75% of the esophageal circumference.
© J Neurogastroenterol Motil
