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The development of a second primary malignancy in patients with these tumors is a well-described phenomenon, and the reported incidence ranges from 12% to 46%. The most common site of associated noncarcinoid malignancies is the gastrointestinal tract, which involves from 30% to 60% of the tumors. We report a case of concurrent colon carcinoma and two neuroendocrine tumors of the duodenum.<\/jats:p>","DOI":"10.1177\/030089161209800131","type":"journal-article","created":{"date-parts":[[2018,2,27]],"date-time":"2018-02-27T04:28:04Z","timestamp":1519705684000},"page":"e16-e17","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Synchronous Association of Two Neuroendocrine Gastroenteropancreatic Tumors, An Adenocarcinoma of the Cecum, and a Meckel's Diverticulum: A Case Report"],"prefix":"10.1177","volume":"98","author":[{"given":"Paolo","family":"Pozzato","sequence":"first","affiliation":[{"name":"Department of Internal Medicine and Gastroenterology, Hospital of Bentivoglio, Bentivoglio (BO)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gian Piero","family":"Casadei","sequence":"additional","affiliation":[{"name":"Department of Histopathology and Cytopathology, Maggiore Hospital, Bologna"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adele","family":"Fornelli","sequence":"additional","affiliation":[{"name":"Department of Histopathology and Cytopathology, Maggiore Hospital, Bologna"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vincenzo","family":"Arigliano","sequence":"additional","affiliation":[{"name":"Department of Oncology, Hospital of Bentivoglio, Bentivoglio (BO)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Salvatore","family":"Virz\u00ec","sequence":"additional","affiliation":[{"name":"Department of Surgery, Hospital of Bentivoglio, Bentivoglio (BO)"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arrigo","family":"Bondi","sequence":"additional","affiliation":[{"name":"Department of Histopathology and Cytopathology, Maggiore Hospital, Bologna"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paola","family":"Tomassetti","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Sant'Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maurizio","family":"Ventrucci","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine and Gastroenterology, Hospital of Bentivoglio, Bentivoglio (BO)"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2018,1,29]]},"reference":[{"key":"bibr1-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1016\/S1470-2045(07)70410-2"},{"key":"bibr2-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1002\/1096-9098(200012)75:4<306::AID-JSO14>3.0.CO;2-3"},{"key":"bibr3-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1002\/cncr.23159"},{"key":"bibr4-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2373041863"},{"key":"bibr5-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2036.2000.00842.x"},{"key":"bibr6-030089161209800131","first-page":"1","volume":"1704","author":"Aly A.","year":"2004","journal-title":"Biochim Biophys Acta"},{"key":"bibr7-030089161209800131","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9610(05)80909-2"}],"container-title":["Tumori Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/030089161209800131","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/030089161209800131","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T18:36:02Z","timestamp":1777660562000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/030089161209800131"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,1]]},"references-count":7,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2012,1]]}},"alternative-id":["10.1177\/030089161209800131"],"URL":"https:\/\/doi.org\/10.1177\/030089161209800131","relation":{},"ISSN":["0300-8916","2038-2529"],"issn-type":[{"value":"0300-8916","type":"print"},{"value":"2038-2529","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,1]]}}}