Fig. 9

In a 57-year-old male with severe AP, initial MDCT (a) showed thrombosis of the portal vein (arrowhead) and extensive, confluent acute post-necrotic collections (*). Weeks later, repeated MDCT (b, c) showed complete regression of collections following ECS performed using only a pigtail stent (thick arrows). However, after stent loss WOPN (* in d) ultimately recurred