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(A) EUS an ovoid, demarcated, heterogeneous, hyperechoic tumor 18.6×11.8 mm in size, originating from the fourth EUS layer (muscularis propria). Abdominal computed tomography revealed a well-demarcated, ovoid mass at the antrum (arrow) on (B) unenhanced, (C) arterial- and (D) delayed-phase scans. EUS, endoscopic ultrasound.
