Size classification of esophageal varices

The size of varices, as illustrated in these endoscopic pictures, can be used to estimate the risk of variceal bleeding. The first panel shows small straight varices (F1), the second panel shows enlarged tortuous varices that occupy less than one-third of the lumen (F2), and the third panel shows large coil-shaped varices that occupy more than one-third of the lumen (F3).