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. 2022 Jul 9;40(11):1105–1120. doi: 10.1007/s11604-022-01305-x

Fig. 15.

Fig. 15

Mesenteric volvulus caused by an exophytic gastrointestinal stromal tumor in the small intestine. A 74-year-old male presented with abdominal discomfort and bloating. Contrast-enhanced CT shows the whirl sign in the mesentery, but enhancement is preserved in the involved mesenteric vessels (a: arrows). A > 10 cm tumor is seen in the pelvis (b: asterisk). The dilated drainage vein with enhancement is observed adjacent to the tumor (b: arrowhead). Laparotomy showing a large exophytic lobulated tumor arising from the small bowel on the antimesenteric side