PMC5478563_01
Follow-up CT after severe pancreatitis revealed huge WON on hospital day 41.
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However, follow-up computed tomography (CT) revealed WON (Fig. 1).
WON gradually decreased in size during recovery stage without intervention. A: Follow up CT in the hospital day 87. Follow up CT in the hospital day 130.
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Following the initiation of conservative treatment, the patient's WON gradually decreased in size (Fig. 2) and the clinical course showed no complications (such as infection or bleeding inside the WON).
MRCP on disease day 146 revealed a distal bile duct stricture (arrow).
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Magnetic resonance cholangiopancreatography (MRCP) revealed a distal bile duct stricture (Fig. 3), and endoscopic ultrasonography (EUS) showed thickening of the entire circumference of the extrahepatic bile duct wall (Fig. 4).
ERCP showed an improvement of distal bile duct stricture (arrow).
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ERCP was repeated 54 days after the placement of the indwelling stent and showed that the stricture had improved (Fig. 5); stent reinsertion was not performed.