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Related Experiment Videos

Is there a prognostic difference between functional and nonfunctional islet cell tumors?

T J White1, J A Edney, J S Thompson

  • 1Department of Surgery, University of Nebraska Medical Center, Omaha 68198-3280.

American Journal of Surgery
|December 1, 1994
PubMed
Summary
This summary is machine-generated.

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Nonfunctioning islet cell tumors (NIT) do not present at a more advanced stage than functioning islet cell tumors (FIT). This study found similar resectability rates and long-term prognosis for both NIT and FIT.

Area of Science:

  • Endocrinology
  • Surgical Oncology
  • Gastroenterology

Background:

  • Pancreatic islet cell tumors are classified as functioning (FIT) or nonfunctioning (NIT).
  • NIT are often presumed to present later with poorer outcomes due to symptoms related to local invasion.
  • Recent reports suggest an increasing incidence of NIT.

Purpose of the Study:

  • To compare the clinical presentation, resectability, and prognosis of nonfunctioning islet cell tumors (NIT) versus functioning islet cell tumors (FIT).

Main Methods:

  • Retrospective study of 28 patients with pancreatic islet cell tumors over a 19-year period.
  • Patients were divided into NIT (n=9) and FIT (n=19) groups.
  • Data collected included age at presentation, symptoms, tumor size, metastatic disease, resectability, and survival.

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Main Results:

  • Mean age at presentation was 61 for NIT and 52 for FIT.
  • NIT commonly presented with abdominal pain or jaundice, while FIT patients had hormone-specific symptoms.
  • No significant differences were observed in metastatic disease incidence (44% vs 53%), curative intent resectability (44% vs 53%), or 2-year disease-free survival (67% vs 40%) between NIT and FIT.

Conclusions:

  • Contrary to previous reports, this study indicates that nonfunctioning islet cell tumors do not present at a more advanced stage than functioning tumors.
  • Resectability rates and long-term prognosis appear comparable between NIT and FIT.
  • These findings challenge the traditional view of NIT having a worse prognosis.