Which finding is a vascular complication of acute pancreatitis?

Which finding is a vascular complication of acute pancreatitis?

• A. Ascites
• B. Pseudocyst
• C. Phlegmon
• D. Pseudoaneurysm/aneurysm

Answer: (D)

Vascular complications in acute pancreatitis happen when pancreatic enzymes and inflammatory tissue erode nearby arteries, leading to a contained bleed known as a pseudoaneurysm. This is the classic vascular issue because it directly involves the vessel wall and can grow or rupture, causing significant hemorrhage. The splenic artery is most commonly involved due to its close relationship to the pancreas, but other peripancreatic vessels can be affected as well. This differs from the other findings: ascites is free fluid in the abdominal cavity from inflammation or fluid shifts, not a vascular lesion; a pancreatic pseudocyst is a fluid collection with a surrounding inflammatory wall, not a vessel-related abnormality; a phlegmon is an inflammatory mass without a true vascular complication. Therefore, a pseudoaneurysm/aneurysm is the vascular complication.

Vascular complications in acute pancreatitis happen when pancreatic enzymes and inflammatory tissue erode nearby arteries, leading to a contained bleed known as a pseudoaneurysm. This is the classic vascular issue because it directly involves the vessel wall and can grow or rupture, causing significant hemorrhage. The splenic artery is most commonly involved due to its close relationship to the pancreas, but other peripancreatic vessels can be affected as well.

This differs from the other findings: ascites is free fluid in the abdominal cavity from inflammation or fluid shifts, not a vascular lesion; a pancreatic pseudocyst is a fluid collection with a surrounding inflammatory wall, not a vessel-related abnormality; a phlegmon is an inflammatory mass without a true vascular complication. Therefore, a pseudoaneurysm/aneurysm is the vascular complication.