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The objective of this paper was to determine the criteria for differentiation of ampullary tumor from benign papillary stricture using thin-section multidetector CT images. Multidetector CT images with 2.5 mm slice-thickness in 57 consecutive patients (24 with ampulla of Vater tumor and 33 with benign papillary stricture) with extrahepatic duct dilatation due to ampullary obstruction were reviewed...
The purpose of this two-part article is to review the cross-sectional anatomy of the ampulla and periampullary region, to propose novel and optimized MDCT and MRI techniques that allow accurate evaluation of the ampulla of Vater, and to summarize the cross-sectional imaging features of benign and malignant ampullary conditions. In this first part, we will review the normal anatomy of the ampullary...
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