Occasionally during the course of pancreatic inflammation or subsequent to trauma to the pancreas, fluid-like material forms a cyst adjacent to or, on rare occasions, within the pancreas. Such a cyst is surrounded by a sac which does not have an epithelial lining, in contrast to a true cyst, and is commonly referred to as a "pancreatic pseudocyst." In our experience pancreatic pseudocyst is one of the commonest types of cysts associated with the pancreas. Various operative procedures have been utilized in the surgical management of pancreatic pseudocyst. Those usually employed have included excision with or without a portion of the adjacent pancreas, incision and drainage, incision and marsupialization, or internal drainage by means of anastomosis of the cyst to a portion of the gastrointestinal tract. The variety of methods used indicates that none has proved entirely satisfactory. In an attempt to evaluate further the operative results in the management