PMC4531932_01
Selective inferior mesenteric arteriogram shows tortuous vascular tufts involving the left colon and sigmoid colon and early filling of a dilated mesenteric vein.
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Selective inferior mesenteric arteriography demonstrated abnormal vasculature involving the sigmoid and distal descending colon without active bleeding (Fig. 1).
Specimen barium enema shows a long segment of thickened bowel wall.
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Barium enema was done with the resected specimen showing markedly thickened bowel wall (Fig. 2).
Gross specimen of the colon after fixation shows marked swelling of the mucosal folds. The cut surface of the wall shows transmural cystically dilated blood vessels which are mainly located at submucosa. There are also abnormal blood vessels in pericolic adipose tissue.
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The cut surface of the bowel wall demonstrated multiple ectatic blood vessels throughout the entire thickness of the wall (Fig. 3).
Microscopic finding shows an abnormal dilated transmural blood vessel and irregular thickening of the bowel wall. (Masson-trichrome, X20)
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Histology revealed abnormal ectaticvasculature (Fig. 4) and a bleeding point could be identified (Fig. 5).