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CT diagnosis of pancreatic or periampullary cancer



CT diagnosis of pancreatic or periampullary cancer



Ugeskrift for Laeger 156(50): 7534-7537



Seventy-seven patients had abdominal computed tomography (CT) performed as part of the diagnostic work-up for suspicion of pancreatic cancer. The CT-images were reviewed by two radiologists who did not know the clinical course, the surgical procedure, or the final diagnosis. The positive predictive value of CT for the diagnosis of pancreatic or periampullary cancer was 92% (82-97%) and the negative predictive value 69% (41-89%). The 95% confidence limits of the positive predictive value of CT in staging the extent of periampullary cancer in 52 patients varied between 21-79% and 59-100%, with the lowest values in diagnosis of liver metastases. The confidence limits for the negative predictive values in staging varied between 17-56% and 67-94%, with the highest values concerning liver metastases. We conclude that CT cannot be used as the only diagnostic procedure for confirming or excluding the diagnosis of pancreatic or periampullary cancer, and that the staging of periampullary cancer by CT alone is too inaccurate for the evaluation of resectability.

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Accession: 042429699

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PMID: 7839520


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