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Markedly elevated serum CA 19-9 levels in a case of chronic pancreatitis
E M Yoshida1, C H Scudamore, S R Erb
1Department of Medicine, University of British Columbia, Vancouver.
Abstract:
Serum levels of carbohydrate antigen (CA) 19-9 exceeding 1000 U/mL are considered highly specific for pancreatic cancer and have not been reported in nonmalignant pancreatic disease. A young man with obstructive jaundice, a serum CA 19-9 level of 2350 U/mL and a mass in the head of the pancreas, seen on computed tomography, was found to have chronic pancreatitis without malignant disease. This case demonstrates that a markedly elevated serum level of CA 19-9 can occur in nonmalignant pancreatic disease and emphasizes the need for a histologic diagnosis of malignancy even if the clinical diagnosis of pancreatic cancer seems certain.
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