<prompt> Commonest complication of pancreatic pseudocyst ?RuptureInfectionObstruction of GITHemorrhage  <response>: Answer is b i.e. Infection Other than pain, infection is the most common complication - Maingots 10e, p 1929 Other complications are: Obstruction of GIT Hemorrhage Rupture Pseudoanetoysm - splenic aery is most frequently involved. 