Pancreatic Pseudocysts

Pancreatic pseudocyst（PP），an amylase-rich fluid collection surrounded by a wall of fibrous granulation tissue，is due to disruption of the MPD or its side branches from acute pancreatitis，pancreatic trauma or chronic pancreatitis（Banks et al.2013；Bradley 1993）.PP occurs in 20-40%of patients with chronic pancreatitis，with low rate of spontaneous resolution（0-9%）in this setting（Andren-Sandberg and Dervenis 2004a，b）.Indications for treatment include the presence of infection，an enlarging PP and symptoms related to the PP（abdominal pain，gastric outlet obstruction，early satiety，weight loss or jaundice）.(https://www.daowen.com)

The pancreatic duct should be evaluated to address factors predisposing to pseudocyst recurrence，namely ductal disruptions，stones and strictures.Ductal evaluation may be performed with MRCP or ERCP.Pancreatic ductal disruption is seen in 40-60%of patients with peripancreatic fluid collections，with better treatment outcomes when a bridging stent is inserted（Trevino et al.2010）.