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Insulinoma

C S Grant1

  • 1Mayo Medical School, Department of Surgery, Mayo Clinic, Rochester, Minnesota, USA.

Surgical Oncology Clinics of North America
|September 12, 1998
PubMed
Summary
This summary is machine-generated.

Insulinoma, a pancreatic tumor causing low blood sugar (hypoglycemia) and high insulin (hyperinsulinemia), is typically diagnosed through neuroglycopenia symptoms. Surgical removal offers a cure for most benign cases.

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Area of Science:

  • Endocrinology
  • Surgical Oncology

Background:

  • Insulinoma is a rare neuroendocrine tumor of the pancreas.
  • Characterized by endogenous hyperinsulinemia leading to hypoglycemia.
  • Neuroglycopenic symptoms are hallmark diagnostic indicators.

Purpose of the Study:

  • To review the diagnostic and management strategies for insulinoma.
  • To highlight the importance of accurate tumor localization.
  • To discuss surgical approaches and expected outcomes.

Main Methods:

  • Review of diagnostic criteria, including clinical presentation and biochemical markers.
  • Discussion of various imaging and intraoperative localization techniques.
  • Analysis of surgical management options: enucleation versus resection.

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Main Results:

  • Hypoglycemia with endogenous hyperinsulinemia is pathognomonic for insulinoma.
  • Intraoperative ultrasonography aids in localization and anatomical definition.
  • Enucleation is the preferred surgical approach; distal resection for specific locations.

Conclusions:

  • Insulinoma is a surgically curable condition in most cases.
  • Accurate localization and appropriate surgical technique are crucial for successful management.
  • Over 90% of insulinomas are benign, leading to expected long-term cure and symptom resolution.