the GASTROLAB Endoscopy Picture Archives

High Resolution Images: Reflux Oesophagitis, the Los Angeles Classification: Grade A

The endoscopic images in this site are mostly quite compressed in order to make the transmissions times as short as possible. Sometimes it is however nice to have high resolution images, for example for publications, text books or lectures. In these "high resolution files" some larger images are displayed.

Just click on any image to get a magnification (and then click "Back" on Your browser). Click here to get back to the index page.

The Los Angeles Classification System for the endoscopic assessment of reflux oesophagitis:
GRADE A: One or more mucosal breaks no longer than 5 mm, non of which extends between the tops of the mucosal folds
 GRADE B: One or more mucosal breaks more than 5 mm long, none of which extends between the tops of two mucosal folds
GRADE C: Mucosal breaks that extend between the tops of two or more mucosal folds, but which involve less than 75% of the oesophageal circumference
GRADE D: Mucosal breaks which involve at least 75% of the oesophageal circumference