Background and Aims: Management of branch-duct intraductal papillary mucinous neoplasms (BDIPMNs) remains challenging. We determined factors associated with malignancy in BD-IPMNs and longterm outcomes.

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Background-Colorectal cancer (CRC) screening is recommended for average risk adults beginning at age 50. However, 7% of CRC occurs in persons younger than age 50, a group for which risk factors are not well defined. We sought to determine whether a retrospective case-control study could identify risk factors for sporadic CRC and advanced adenomatous polyps (together known as sporadic colorectal neoplasia [CRN]).

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