| I | Enlargement of the veins still at mucous membrane level | |
|---|---|---|
| II | Individual, straight running vein cords already reaching into esophageal lumen, only narrowing it a little bit | |
| III | Strong, coiled running vein cords, significantly narrowing the lumen | |
| IV | almost complete relocation of the lumen and signs of bleeding risk (cherry red spots) |