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  • Title: Usefulness of brush cytology combined with pancreatic juice cytology in the diagnosis of pancreatic cancer: significance of pancreatic juice cytology after brushing.
    Author: Yamaguchi T, Shirai Y, Nakamura N, Sudo K, Nakamura K, Hironaka S, Hara T, Denda T.
    Journal: Pancreas; 2012 Nov; 41(8):1225-9. PubMed ID: 23086246.
    Abstract:
    OBJECTIVES: Pancreatic juice cytology (PJC) and brush cytology (BC) performed during endoscopic retrograde cholangiopancreatography could make a definite diagnosis of pancreatic cancer. The aim of this study was to improve the diagnostic value of cytology performed during endoscopic retrograde cholangiopancreatography in the diagnosis of pancreatic cancer. METHODS: The subjects comprised 127 patients with pancreatic ductal adenocarcinoma (PDAC) and 74 with benign pancreatic duct stricture mimicking PDAC. Final diagnosis was confirmed based on histopathology by resection or on more than 1 year of follow up. Pancreatic juice cytology was examined before and after BC. And the sensitivity of PJC combined with BC was examined. RESULTS: No malignancy was detected by PJC or by BC in patients with benign pancreatic duct strictures (specificity, 100%). In those with PDAC, the sensitivity of PJC before and after brushing was 21.3% and 40.9%, respectively; that of BC was 48.8%. Of 65 patients with PDAC, in whom neither PJC before brushing nor BC indicated malignancy, 16 were diagnosed with pancreatic cancer using PJC after brushing. Brush cytology combined with PJC after brushing significantly raised the diagnostic sensitivity for PDAC to 61.4%. CONCLUSIONS: Diagnosis of pancreatic cancer based on BC combined with PJC after brushing was more reliable than PJC before brushing or BC.
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