4.5 Article

Diagnosis and management of neuroendocrine tumours

Journal

CLINICAL MEDICINE
Volume 23, Issue 2, Pages 119-124

Publisher

ROY COLL PHYS LONDON EDITORIAL OFFICE
DOI: 10.7861/clinmed.2023-0044

Keywords

Neuroendocrine tumour; neuroendocrine carcinoma; carcinoid syndrome; somatostatin analogues; peptide receptor radionuclide therapy

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Neuroendocrine tumors (NETs) are a diverse group of tumors with various primary sites, functional statuses, and degrees of aggressiveness. The most common sites are the lung, small bowel, pancreas, and appendix. Diagnosis relies on biochemical markers, imaging techniques, and functional imaging. Treatment options range from surgery to disease stabilization approaches, including somatostatin analogues and various therapies. Despite potential complications, NETs have reasonable 5- and 10-year survival rates.
Neuroendocrine tumours (NETs) represent a heterogenous group of tumours, with diversity in their primary tumour sites, functional status (ie hormone secreting or non-functional) and degrees of aggressiveness (ranging from well-differentiated, grade 1 neuroendocrine tumours to poorly differentiated grade 3, neuroendocrine carcinomas). The most common sites are the lung, small bowel, pancreas and appendix. Clinical presentation is variable, ranging from incidental lesions detected on cross-sectional imaging, small bowel obstruction, carcinoid syndrome or other syndromic presentations (eg hypoglycaemia resulting from insulinoma) through to florid carcinoid heart disease. Diagnosis relies on biochemical markers, computed tomography (CT), magnetic resonance imaging (MRI) and somatostatin-receptor based functional imaging. Treatment comprises surgery where curative resection is possible through to approaches where disease stabilisation is the key, involving somatostatin analogues, peptide receptor radionuclide therapy (PRRT), everolimus, sunitinib, liver-directed therapies and sometimes chemotherapy. Although local and systemic complications can occur, they are associated with reasonable 5-and 10-year survival rates, respectively.

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