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An 87-year-old woman had progressive anaemia and underwent pre-contrast and post-contrast two-phase (arterial and delayed phase) CT. (a) On the pre-contrast CT, it is difficult to determine whether the duodenal contents (arrow) are haematomas. (b) The arterial phase shows extravasation into the duodenal lumen. (c) Extravasation increases in the delayed phase. On the basis of these findings, duodenal active bleeding is suspected.
