Upper gastrointestinal hemorrhage caused by superwarfarin poisoning

Figure 1 Initial esophagogastroduodenoscopy (EGD) demonstrating normal esophageal mucosa (A) and erosion lesions scattering in the stomach (B).

Figure 2 Second EGD showing submucosal congestion in the esophagus (A), active bleeding in the original biopsy sites (B), and titanium clips used for hemostasis (C).

Figure 3 Final EGD showing the absorbed esophageal submucosal congestion (A) and bleeding in the stomach with titanium clips in good condition (B).

Figure 4 Plain radiography (A) and CT scanning (B) revealing 5 titanium clips in the stomach (arrows).