Abstract
Twenty-seven patients with 32 pancreatic pseudocysts have been seen during the past 10 years at St George's Hospital, London. Two of the pseudocysts were found in unusual positions-one in the right inguinal canal and the other one in the porta hepatis. Approximately half of the pseudocysts in this series followed biliaryinduced pancreatitis. The various clinical presentations are reported and the surgical treatment is discussed. Internal drainage is the most effective treatment and in the majority of cases transgastric cystogastrostomy via a tube is the procedure of choice. One death occurred, an overall mortality rate of 3.1 per cent.

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