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  • Title: [Specificity and sensitivity of ERCP in pancreatic pathology].
    Author: Pomerri F, Pittarello F, Pescarini L, Muzzio PC.
    Journal: Radiol Med; 1987; 73(1-2):64-7. PubMed ID: 3809636.
    Abstract:
    Fifty-three patients were examined by endoscopic retrograde cholangiopancreatography (ERCP). Operative and/or instrumental-clinical findings indicated that 38 patients had pancreatic disease, consisting of 17 cases of neoplasia, 10 of chronic pancreatitis with benign stenosis, and 11 of chronic pancreatitis without stenosis. An analysis of Wirsung's duct and of the secondary ducts was carried out employing, in the latter case, linear discriminate analysis (Nix and Schmitz method). With this method, 16 of 17 patients (94%) were correctly assigned to group A (pancreatic neoplasia), thus indicating high sensitivity; 7 of 8 patients (88%) were assigned to group B (chronic pancreatitis with benign stenosis), and finally 7 of 10 patients (70%) were placed in group C (chronic pancreatitis without stenosis). Detection of a sample sign such as sharp and/or irregular stenosis of Wirsung's duct enabled a correct diagnosis of neoplasia in the cases examined; this criterion, however, is very specific but poorly sensitive. When it is absent, analysis of the secondary ducts is determinant. If the two criteria are applied together, an exact diagnosis of all forms of neoplasia is obtained.
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