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Insulinoma.

W W de Herder¹

¹Department of Internal Medicine, Erasmus MC, Rotterdam, The Netherlands. w.w.deherder@erasmusmc.nl

Neuroendocrinology

|October 13, 2004

Summary

Most insulinomas are benign tumors causing hypoglycemia. Surgical removal is the primary goal for solitary tumors, while complete resection of all metastases is needed for metastatic cases to resolve symptoms.

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Area of Science:

Endocrinology
Oncology
Surgical Pathology

Background:

Insulinomas are rare tumors, with over 90% being benign.
These tumors lead to hypoglycemia, causing neuroglycopenia and catecholamine responses.
Diagnostic criteria include blood glucose <40 mg/dL, insulin >6 IU/mL, and C-peptide >0.2 pmol/L during symptomatic episodes.

Purpose of the Study:

To summarize the key aspects of insulinoma diagnosis and management.
To highlight the importance of surgical intervention in treating insulinomas.

Main Methods:

Review of clinical presentation and diagnostic criteria for insulinomas.
Discussion of therapeutic strategies, including medical management and surgical resection.
Emphasis on intraoperative identification and surgical outcomes.

Main Results:

The majority of insulinomas are benign.
Surgical resection is the definitive treatment for solitary insulinomas.
Complete resection of metastases is necessary for symptom resolution in advanced cases.

Conclusions:

Insulinomas necessitate prompt diagnosis and management to prevent hypoglycemic episodes.
Surgical intervention, particularly complete tumor removal, is crucial for successful treatment.
Management strategies must be tailored to whether the insulinoma is solitary or metastatic.

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