title: Synchronous association of two neuroendocrine gastroenteropancreatic tumors,  an adenocarcinoma of the cecum,  and a Meckel's diverticulum: a case report.
abstract: Neuroendocrine gastroenteropancreatic tumors constitute a heterogeneous group of neoplasms, with the primary tumors being located in the gastric mucosa, pancreas, and small and large intestine. 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.
authors.affiliation: Department of Internal Medicine and Gastroenterology, Hospital of Bentivoglio, Bentivoglio (BO), Italy. paolopozzato@hotmail.com
authors.forename: Paolo
authors.initials: P
authors.lastname: Pozzato
authors.forename: Gian Piero
authors.initials: GP
authors.lastname: Casadei
authors.forename: Adele
authors.initials: A
authors.lastname: Fornelli
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Arigliano
authors.forename: Salvatore
authors.initials: S
authors.lastname: Virzì
authors.forename: Arrigo
authors.initials: A
authors.lastname: Bondi
authors.forename: Paola
authors.initials: P
authors.lastname: Tomassetti
authors.forename: Maurizio
authors.initials: M
authors.lastname: Ventrucci
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage / Q000627:therapeutic use; D002277:Carcinoma / Q000175:diagnosis; D002430:Cecal Neoplasms / Q000175:diagnosis; D017024:Chemotherapy, Adjuvant; D003082:Colectomy; D003110:Colonic Neoplasms / Q000175:diagnosis; D004379:Duodenal Neoplasms / Q000175:diagnosis; D005472:Fluorouracil / Q000008:administration & dosage; D005743:Gastrectomy; D006801:Humans; D007150:Immunohistochemistry; D007414:Intestinal Neoplasms / Q000175:diagnosis*; D002955:Leucovorin / Q000008:administration & dosage; D008297:Male; D008467:Meckel Diverticulum / Q000175:diagnosis*; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis*; D018358:Neuroendocrine Tumors / Q000175:diagnosis*; D009944:Organoplatinum Compounds / Q000008:administration & dosage; D016896:Treatment Outcome
chemical_list: D009944:Organoplatinum Compounds; D002955:Leucovorin; D005472:Fluorouracil