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Pancreatic neuroendocrine tumours
1Centre for Pancreaticobiliary Diseases, AMNCH, Tallaght, Dublin 24, Ireland.
Summary
Pancreatic neuroendocrine tumors (PETs) are rare, accounting for <5% of pancreatic cancers. Both functional and non-functioning PETs present unique diagnostic and treatment challenges, with surgery often being the primary approach.
Area of Science:
- Oncology
- Endocrinology
- Gastroenterology
Background:
- Pancreatic neuroendocrine tumors (PETs) are rare neoplasms, comprising less than 5% of pancreatic malignancies.
- PETs are categorized as functional (e.g., insulinomas, gastrinomas) or non-functioning, based on hormone hypersecretion and clinical syndromes.
- Non-functioning PETs present with non-specific symptoms due to mass effect, lacking a distinct hormonal syndrome.
Purpose of the Study:
- To review the characteristics, presentation, and management of pancreatic neuroendocrine tumors (PETs).
- To differentiate between functional and non-functioning PETs and their respective clinical implications.
- To discuss current and emerging therapeutic strategies for managing PETs.
Main Methods:
- Literature review of pancreatic neuroendocrine tumor (PET) incidence, presentation, and treatment.
- Analysis of clinical syndromes associated with functional PETs versus mass-effect symptoms of non-functioning PETs.
- Evaluation of surgical, chemotherapeutic, hormonal, and interventional radiological treatment modalities.
Main Results:
- Functional PETs are associated with specific hormone hypersecretion syndromes, while non-functioning PETs present with non-specific symptoms.
- The incidence of non-functioning PETs varies widely (15-53%).
- Surgical excision is the primary treatment for both types, with controversial roles for chemotherapy and hormonal therapy.
Conclusions:
- Pancreatic neuroendocrine tumors (PETs) require tailored management based on functional status and tumor burden.
- While surgery is optimal for functioning PETs, long-term survival is achievable even with metastases.
- Advances in medical management, including somatostatin therapy and interventional radiology, improve symptom control and quality of life for PET patients.
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