Tumor-Induced Hypoglycemia: An Unusual Case Report and Review of Literature

Abstract

Objective: To describe a rare case of pheochromocytoma presenting with hypoglycemia. Methods: We describe a rare case of pheochromocytoma presenting with a hypoglycemic seizure. Our article includes our differentials, work up, and management. Results: Our patient had non–islet-cell tumor hypoglycemia that was non-insulin mediated, as noted by low insulin levels. His hypoglycemia was likely multifactorial and mediated by different mechanisms. We describe the rare case and review the causes of tumor-induced hypoglycemia. Conclusion: Pheochromocytomas can rarely present with hypoglycemia and are associated with a poor prognosis.

Keywords

• hypoglycemia
• pheochromocytoma
• tumor-induced hypoglycemia