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The term ampullary tumor generally refers to either benign or malignant neoplasms that arise from the glandular epithelium of the ampulla of Vater, including 1:
According to some authors, ampullary tumors are considered part of periampullary tumors 4.
Treatment and prognosis
In general, ampullary tumors tend to show a better prognosis than do their biliary or periampullary counterparts as they can be detected at an earlier stage owing to earlier presentation due to biliary obstruction 3.