What is the most common cause of a pancreatic pseudocyst?

What is the most common cause of a pancreatic pseudocyst?

• A. Chronic pancreatitis
• B. Pancreatic cancer
• C. Acute pancreatitis
• D. Trauma

Answer: (C)

Pancreatic pseudocysts develop when pancreatic enzymes leak from damaged tissue during pancreatitis and are surrounded by fibrous tissue, forming a closed fluid collection that lacks an epithelial lining. This makes them inflammatory in origin rather than true cysts. The most common trigger is an episode of acute pancreatitis, often from alcohol use or gallstones, because the acute ductal disruption and intense inflammation readily create a localized fluid collection that becomes encapsulated over weeks. While chronic pancreatitis, trauma, or pancreatic cancer can be associated with pancreatic cysts, they are less likely to produce a pseudocyst as defined.

Pancreatic pseudocysts develop when pancreatic enzymes leak from damaged tissue during pancreatitis and are surrounded by fibrous tissue, forming a closed fluid collection that lacks an epithelial lining. This makes them inflammatory in origin rather than true cysts.

The most common trigger is an episode of acute pancreatitis, often from alcohol use or gallstones, because the acute ductal disruption and intense inflammation readily create a localized fluid collection that becomes encapsulated over weeks. While chronic pancreatitis, trauma, or pancreatic cancer can be associated with pancreatic cysts, they are less likely to produce a pseudocyst as defined.