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Updated: Jun 13, 2025

Robotic Enucleation of an Intra-Pancreatic Insulinoma in the Pancreatic Head
Published on: January 3, 2020
Hyperinsulinemic Hypoglycemia Due to an Insulinoma in a 2-Year-Old Child
Lauren M Mitteer1,2, Lisa States2,3, Tricia Bhatti2,4
1Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
Insights
A rare pediatric insulinoma caused severe hypoglycemia in a child. Surgical removal of the pancreatic tumor successfully cured the condition, resolving the hyperinsulinism and eliminating the need for glucose monitoring.
Area of Science:
- Pediatric Endocrinology
- Surgical Oncology
- Molecular Genetics
Background:
- Insulinomas, rare insulin-secreting tumors, predominantly affect adults.
- Pediatric hyperinsulinemic hypoglycemia (HI) presents diagnostic and therapeutic challenges.
- Genetic testing for common HI-associated genes was negative in this case.
Observation:
- A 26-month-old child presented with severe hypoglycemia, initially diagnosed as hyperinsulinemic hypoglycemia.
- Despite 10 months of various HI therapies, the patient showed no significant improvement.
- Imaging revealed a pancreatic lesion suggestive of an insulinoma.
Findings:
- Histopathological review confirmed a benign, well-circumscribed insulinoma.
- Surgical enucleation of the pancreatic lesion was performed.
- Postoperative fasting tests confirmed resolution of hypoglycemia and hyperinsulinism.
Implications:
- This case highlights the possibility of insulinoma in pediatric hyperinsulinemic hypoglycemia, even with negative genetic testing.
- Successful surgical management can lead to a complete cure in pediatric insulinoma.
- Early diagnosis and surgical intervention are crucial for favorable outcomes in pediatric insulinoma.
Abstract:
Insulinomas are rare insulin-secreting tumors that most commonly affect adults. A 26-month-old child presented to her local emergency department with severe hypoglycemia. Initial workup was consistent with hyperinsulinemic hypoglycemia. Over the course of 10 months, multiple therapies for hyperinsulinism (HI) were trialed without significant benefit. Genetic testing for genes associated with HI was negative. At age 35 months, the patient was transferred to our center for further treatment. She underwent several imaging tests that revealed a lesion on her pancreas concerning for an insulinoma. The patient underwent surgical intervention to enucleate the lesion. Histopathological review of the specimen confirmed a benign, well-circumscribed insulinoma. A postoperative fasting test proved the patient was cured and she was discharged without the need for further glucose monitoring.
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