Serial serum amylase levels in patients with pancreatic pseudocysts

The incidence of hyperamylasaemia in serial serum amylase levels from patients with pancreatic pseudocysts is not well documented in the literature. Accordingly serial amylase levels were estimated in 5 patients with proven pancreatic pseudocysts. The majority of the values were normal or only minimally elevated. In contrast the amylase thermolability was persistently elevated and appeared to be a more sensitive measurement than serum amylase activity for indicating the presence of pancreatic pseudocysts.