SciELO - Scientific Electronic Library Online

vol.109 issue11Insulin resistance and the metabolic syndrome are related to the severity of steatosis in the pediatric population with obesityEluxadoline in the treatment of diarrhea-predominant irritable bowel syndrome: The SEPD perspective author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Revista Española de Enfermedades Digestivas

Print version ISSN 1130-0108


HURTADO-PARDO, Luis et al. Cystic pancreatic neuroendocrine tumors (cPNETs): a systematic review and meta-analysis of case series. Rev. esp. enferm. dig. [online]. 2017, vol.109, n.11, pp.778-787. ISSN 1130-0108.

Cystic pancreatic neuroendocrine tumors represent 13% of all neuroendocrine tumors. The aim of this study is to analyze the phenotype and biologic behavior of resected cystic neuroendocrine tumors. A systematic review and meta-analysis were conducted until September 2016 using a search in Medline, Scopus, and EMBASE with the terms "cystic pancreatic endocrine neoplasm", "cystic islets tumors" and "cystic islets neoplasms". From the 795 citations recovered 80 studies reporting on 431 patients were selected. 87.1% (n = 387) were sporadic tumors and 10.3% (n = 40) corresponded to multiple endocrine neoplasia type 1. Were diagnosed incidentally 44.6% (n = 135). Cytology was found to have a sensitivity of 78.5%. Were non-functional tumors 85% (n = 338), and among the functional tumors, insulinoma was the most frequent. According to the European Neuroendocrine Tumor Society staging, 87.8% were limited to the pancreas (I-IIb), and 12.2% were advanced (III-IV). Disease-free survival at 5 years in stages (I-IIIa) and (IIIb-IV) was 91.5% and 54.2%, respectively; and was significantly lower (p = 0.0001) in functional tumors. In patients with multiple endocrine neoplasia there was a higher incidence of functional (62.5%) and multifocal (28.1%) tumors. Disease-free survival at 5 and 10 years was 60%. Cystic pancreatic neuroendocrine tumors exhibit phenotypical characteristics which are different to those of solid neuroendocrine tumors.

Keywords : Cystic pancreatic neuroendocrine tumors; Multiple endocrine neoplasia type 1; Cystic tumors; Oncologic outcomes; Evidence base medicine.

        · abstract in Spanish     · text in English | Spanish     · English ( pdf ) | Spanish ( pdf )