The Highest Ever Reported Level of Carbohydrate Antigen 19-9: A Case Report

Hamoud Al-Khallaf, Phillip J Monaghan, Ahmed Ourfali, Mohamed Elsammak, Cherrilyn Ambrosio, Ravinder Sodi, Abduljaleel Poovathumkadavil


We present a case of adenocarcinoma of the tail of the pancreas with liver metastases expressing serum carbohydrate antigen 19-9 level of 19,516,020 U/ml. A review of the literature revealed that a concentration of this magnitude has not previously been reported for this tumor marker.

J Med Cases. 2011;2(2):71-75


Carbohydrate antigen 19-9; Highest reported level; Pancreatic tumor; Adenocarcinoma

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