Pseudoaneurysm associated with complicated pancreatic pseudocysts.

A pseudoaneurysm associated with a pseudocyst is a serious and unusual complication of chronic pancreatitis. Its treatment is complex due to its elevated mortality and the need for multidisciplinary management. Initial measures consist in locating the hemorrhage through computerized dynamic tomography and arteriography. The treatment of choice is controversial due to the lack of controlled studies. For managing hemorrhages in stable patients, the most accepted initial measure currently is arterial embolization. In the event of failure of the same, hemodynamic instability or the impossibility of drainage of the pseudocyst, surgery is the subsequent therapeutic option.