PMC7317164_01
Abdominopelvic CT scan: A & B) Dilated tortouous hepatic arteries with mutifocal arterio-venous shunts in liver, arterio-venous malformation in ileal wall. C) Coronal view.
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A gastrointestinal bleeding scan revealed active bleeding in the left- to mid-pelvic cavity (ileum) (Fig. 1).
Angiography: A) Contrast extravasation from proximal ileum. B) Transcatheter arterial embolization was two times performed for selective embolization of two ileal branch using 1 via gelfoam particle and 1 microcoli, respectively.
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Subsequently, transcatheter arterial embolization was twice performed for selective embolization of two ileal branches, using Gelfoam  (Pfizer, Kalamazoo, Michigan, US) particles and microcoil, respectively (Fig. 2).
Macroscopically, mucosal denudation, submucosal congestion and diffuse wall thinning, consistent with ischemic change was found (A). Histologically, focal abnormal ectatic vascular proliferation in the entire intestinal wall, centered at the submucosa, suggestive of angiodysplasia was found (B, C-arrows, D).
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Macroscopically, mucosal denudation, submucosal congestion, and diffuse wall thinning consistent with ischemic change were found (Fig. 3A). Histologically, focal abnormal ectatic vascular proliferation in the entire intestinal wall, centered at the submucosa, suggestive of angiodysplasia was found (Fig. 3B-D).