The prime cause of death from pancreatic pseudocyst is:

Rupture and hemorrhage are the prime causes of death in pancreatic pseudocyst. A triad : 1. increase in the size of the mass, a localized bruit over the mass, and decrease in hemoglobin level should ale one to the possibility of hemorrhage from a pseudocyst. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 2642