Ultrasound and Endoscopic Ultrasound in the Diagnosis of Pancreatic Tumors
Due to the increasing number of new imaging techniques and tumor markers, it is difficult to establish which method or combination of methods may provide the greatest amount of information for diagnosis of pancreatic carcinoma. The accuracy of different imaging methods in the detection of pancreatic tumors depends mainly on the size of the tumor and the involvement of the main pancreatic duct and common bile duct. Endoscopic retrograde cholangiopancreatography (ERCP) has a very high sensitivity in the diagnosis of tumors because of the frequent involvement of the main pancreatic duct; the specificity in cases of chronic pancreatitis is, however, limited. Small tumors of less than 2 cm in diameter are hardly demonstrated by ultrasound (US) or even computed tomography (CT); in these cases, the sensitivity of endoscopic ultrasound (EUS) is clearly superior (higher than 90%).
KeywordsPancreatic Cancer Common Bile Duct Pancreatic Carcinoma Pancreatic Tumor Main Pancreatic Duct
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