Ultrasound-guided drainage of walled-off pancreatic necrosis. Case report.

ERCP (endoscopic retrograde cholangiopancreatography) represents a safe endoscopic procedure and serious complica- tions (perforation, haemorrhage, and acute pancreatitis) are usually uncommon. We present the case of a 38-year-old patient with gallstones in the common biliary duct who developed acute pancreatitis after ERCP. One month later a huge fluid col- lection with necrotic tissue in the right paracolic gutter was found, the fluid being drained by percutaneous drainage under ultrasonographic guiding. The particularity of the case is the post-ERCP pancreatitis, complicated with walled-off necrosis, resolved without surgical intervention by using percutaneous drainage.