IF PANCREATIC cyst were not an uncommon condition, it might be mistaken for carcinoma of the stomach more frequently. During the past twelve years there were 8 cases of pancreatic cyst and 596 cases of carcinoma of the stomach among a total of 160,011 patients admitted to Mercy Hospital, a ratio of 1:75:20,000.
Cysts may be classified into five major groups: (1) developmental—arising on the basis of congenital anomaly; (2) degenerative—the inflammatory-traumatic cyst or pseudocyst, comprising the majority of all pancreatic cysts; (3) obstructive—the small retention or mechanical cyst, the result of obstruction from stone, carcinoma or proliferation of the ductal epithelium; (4) proliferative—composed principally of cystadenoma and cystadenocarcinoma; (5) parasitic—caused by Echinococcus (hydatid).
ANATOMY AND PRESENTATION OF CYSTS
The adult pancreas is an elongated, flattened, wedge-shaped structure lying in the transverse-oblique position in the posterior epigastric and hypochondriac regions. Because of the unyielding nature of the vertebral column