Acute appendicitis complicated by mesenteric vein thrombosis: A case report

Figure 1 Contrast-enhanced computed tomography coronal reformatted image in the portal vein phase showed a filling defect consistent with a clot in the ileocolic vein (arrow) associated with surrounding inflammation of fat up to the superior mesenteric vein. Substantial appendiceal enlargement with inflammation indicative of acute appendicitis was observed (curve arrow). Moreover, enlarged lymph nodes within the mesentery was seen (arrowhead).

Figure 2 Follow-up computed tomography scan after 1 mo. Coronal reformatted image with maximum intensity projection showed the ileocolic artery (arrow). The site of previous thrombophlebitis in the ileocolic vein had disappeared, which indicated that the vein was completely occluded and that collateral circulation was established.