Insulinoma is a rare functional neuroendocrine tumor arising from pancreatic islet cells. Most cases are sporadic, although some are linked to multiple endocrine neoplasia type 1 (MEN1) syndrome. These tumors secrete excessive insulin, leading to hyperinsulinemia and hypoglycemic episodes, especially during fasting. Symptoms include fasting hypoglycemia, palpitations, tremors, and neuroglycopenic effects like confusion and seizures. Diagnosis involves demonstrating inappropriate hyperinsulinemia during hypoglycemia, supported by imaging studies. Most insulinomas are benign and treated with surgical resection, which is often curative. For inoperable cases, medical management helps control hypoglycemia. Metastatic disease may require debulking surgery, locoregional therapies, or liver-directed interventions like embolization or ablation. The prognosis depends on tumor size, metastatic spread, and genetic factors. This activity for healthcare professionals is designed to enhance the learner’s competence in recognizing the clinical manifestations of insulinoma, performing the recommended evaluation, and implementing an appropriate interprofessional management approach to improve patient outcomes.
Credit & MOC Details
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Credit types
MOC types
FDA REMS
Qualifies for MIPS
Target Specialties
Relevant across 9 specialties.
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