Efficacy and safety of sirolimus in the treatment of gastrointestinal angiodysplasias

Figure 1 Typical endoscopic images of intestinal angiodysplasias. A: At 50 cm from the pylorus, multiple punctate erythemas are observed, some with blood seepage, classified as Yano-Yamamoto type 1a; B: At 150 cm from the pylorus in the jejunum, after removal of blood clots and irrigation, two sites of non-pulsatile active bleeding are visible, classified as type 1a; C: At 270 cm from the ileocecal valve, patchy erythema is observed without seepage, classified as type 1b; D: At 100 cm from the pylorus in the jejunum, active bleeding is evident; after irrigation, no pulsation is detected, and the base of the erythema is larger than 1 mm, classified as type 1b. Indicated by black arrows.