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. 1991 Oct;32(10):1188–1191. doi: 10.1136/gut.32.10.1188

Cytodiagnosis in the management of extrahepatic biliary stricture.

L A Desa 1, A B Akosa 1, S Lazzara 1, P Domizio 1, T Krausz 1, I S Benjamin 1
PMCID: PMC1379383  PMID: 1659552

Abstract

A total of 117 patients presenting with extrahepatic biliary strictures between 1981 and 1989 had 206 cytological examinations of the bile duct or bile (153 non-operative, 53 intraoperative) to establish the presence of malignancy. A final diagnosis of cholangiocarcinoma was made in 88 patients, with 29 patients having benign biliary strictures. The cytological techniques used were fine needle aspiration (n = 102) or brushing (n = 24) of the bile duct, or exfoliative cytology of bile (n = 80). Forty one patients with malignancy had two or more examinations with differing results between samples in 20 cases. The overall sensitivity was 72%. There was only one false positive result, giving a patient predictive value of positive cytology of 98%. Intraoperative cytology was more sensitive than non-operative examination (80% v 42%). Overall, the sensitivity of fine needle aspiration (67%) was greater than that of brush cytology (40%) or exfoliative cytology (30%). No complications were encountered. Cytodiagnosis of extrahepatic biliary strictures is a safe procedure which is not technically demanding, and as it has a high sensitivity and predictive value for positive cytology, cytological confirmation of malignancy should be sought in all clinically and radiologically suspicious cases.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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