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[Diagnostic and therapeutic strategy in multiple insulinoma]
T Böttger1, A Heintz, T Junginger
1Klinik und Polikinik für Allgemein- und Abdominalchirurgie, Johannes-Gutenberg-Universität Mainz.
Der Chirurg; Zeitschrift Fur Alle Gebiete Der Operativen Medizen
|January 1, 1995
Summary
Diagnosing organic hyperinsulinism requires advanced imaging. Pancreatic resection is more effective than enucleation for multiple insulinomas, with excisional biopsy recommended for nesidioblastosis.
Area of Science:
- Endocrinology
- Surgical Oncology
- Diagnostic Imaging
Background:
- Organic hyperinsulinism (OH) is a rare condition characterized by excessive insulin secretion.
- Accurate preoperative localization of insulinomas is crucial for successful surgical management.
- Multiple endocrine tumors and adenomatosis present unique diagnostic challenges.
Observation:
- In a cohort of 59 patients with OH, four had multiple insulinomas and two had micro- and macroadenomatosis.
- Preoperative imaging detected 30% of tumors with ultrasound and 50% with CT, excluding adenomatosis cases.
- Angiography visualized 6 of 7 macroadenomas, and 90% of macroadenomas were palpable intraoperatively.
Findings:
- Intraoperative ultrasound successfully localized a nonpalpable macroadenoma.
- Pancreatic resection demonstrated superior outcomes compared to multiple enucleations for OH treatment.
- Excisional biopsy is advised to differentiate nesidioblastosis or microadenomatosis from other causes.
Implications:
- Improved preoperative imaging strategies are needed for complex OH cases.
- Surgical approach (resection vs. enucleation) should be tailored to tumor characteristics.
- Histopathological confirmation via excisional biopsy is essential for definitive diagnosis and management planning.