TY - JOUR T1 - ANSWER JF - Gut JO - Gut SP - 544 LP - 544 DO - 10.1136/gut.2008.164939a VL - 58 IS - 4 A2 - , Y1 - 2009/04/01 UR - http://gut.bmj.com/content/58/4/544.abstract N2 - From question on page 482Segmental colitis can be caused by intestinal ischaemia, resulting from venous or arterial vascular aetiologies. Here, histopathological work-up confirmed our hypothesis of mesenteric–inflammatory veno-occlusive disease (MIVOD), characterised by predominantly lymphocytic inflammation, thrombosis, fibrinoid necrosis, obliteration and often myointimal hyperplasia of the mesenteric veins. Arteries are spared, by definition.1 Although few cases were associated with hypercoagulation syndromes or systemic … ER -