Abstract
Endoscopic ultrasonography (EUS) was done in a patient operated for Dieulafoy's ulcer due to A-Vmalformation (Figure 4). Low echoic shadow (Figure 6, 7) such as cylinder, bead and string like pattern (Figure 8) were seen in submucosa. As compared with resected specimen, low echoic shadows suggested the A-Vmalformation. Such findings of EUS have not been reported on the literatures as far as we knew. However, in reviewing the literatures on Diuelafoy's ulcer we presumed that a large vessel in the submucosa could be demonstrated in 41 of 64 histologically illustrated cases (64%) with EUS. The access of endoscopic hemostasis to the treatment of Dieulaf oy's ulcer has presented less specimens to investigate. EUS is useful for such conservative cases to estimate a large vessel of Dieulaf oy's ulcer.
