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Gastroentero-pancreatic neuroendocrine tumours (GEP-NETs) are regarded as a fairly rare disease. They are derived from the neuroendocrine system of the gastrointestinal tract and the pancreas and share common clinical features. So far, there is still uncertainty about the cell biology and mechanistic regulation of these tumours. Therefore targeted treatment is limited and management challenging. Treatment options include surgery, medical and ablative therapy, and more recently peptide-receptor radionuclide therapy. In order to better understand the characteristics of GEP-NETs and to evaluate treatment strategies, the SwissNET registry aims at the collection of data from patients presenting with a GEP-NET in Switzerland. Data will be entered prospectively and anonymized in a specifically designed database after the patient has given informed consent. All hospitals and general practitioners are invited to report on patients with a GEP-NET diagnosis and to participate to the registry. Data will be evaluated within regular time frames, focussing on types of GEP-NETs, treatment modalities and patient outcomes (e.g. mortality, hospitalisation rate), thereby contributing to the better understanding of these tumours.
Gastroentero-pancreatic neuroendocrine tumours (GEP-NETs) are generally classified as rare diseases. Little is known about their cell biology and their mechanistic regulation. During the last years, the incidence of GEP-NETs is continuously increasing worldwide. In parallel, novel treatment options are currently evaluated which may substantially improve prognosis of patients with NETs. Data on such tumours in Switzerland, however, is scarce and treatment strategies vary throughout the country.
To systematically and prospectively collect clinical information of patients with GEP-NETs in Switzerland based on a histologically confirmed diagnosis.
All NETs of both, gastrointestinal and pulmonary origin are included provided that patients have given informed consent. Data will be entered prospectively and anonymised in a specifically designed database. Contributing centres and general practitioners are visited by a study nurse, patient files are analysed and data is transferred to the database. In case of conflicting evidence, questions are resolved in collaboration with a review board of SwissNET. Evaluation of treatment modalities and patient outcomes (e.g. mortality, hospitalisation rate) will take place within regular time frames.
Observational Model: Cohort, Time Perspective: Prospective
Div. of Endocrinology, Diabetes and Clinical Nutrition, Bern University Hospital
University Hospital Inselspital, Berne
Published on BioPortfolio: 2014-07-23T21:11:16-0400
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Tumors whose cells possess secretory granules and originate from the neuroectoderm, i.e., the cells of the ectoblast or epiblast that program the neuroendocrine system. Common properties across most neuroendocrine tumors include ectopic hormone production (often via APUD CELLS), the presence of tumor-associated antigens, and isozyme composition.
A group of carcinomas which share a characteristic morphology, often being composed of clusters and trabecular sheets of round "blue cells", granular chromatin, and an attenuated rim of poorly demarcated cytoplasm. Neuroendocrine tumors include carcinoids, small ("oat") cell carcinomas, medullary carcinoma of the thyroid, Merkel cell tumor, cutaneous neuroendocrine carcinoma, pancreatic islet cell tumors, and pheochromocytoma. Neurosecretory granules are found within the tumor cells. (Segen, Dictionary of Modern Medicine, 1992)
A 38-kDa integral membrane glycoprotein of the presynaptic vesicles in neuron and neuroendocrine cells. It is expressed by a variety of normal and neoplastic neuroendocrine cells and is therefore used as an immunocytochemical marker for neuroendocrine differentiation in various tumors. In ALZHEIMER DISEASE and other dementing disorders, there is an important synapse loss due in part to a decrease of synaptophysin in the presynaptic vesicles.
An acidic protein found in the NEUROENDOCRINE SYSTEM that functions as a molecular chaperone for PROPROTEIN CONVERTASE 2.
A usually small, slow-growing neoplasm composed of islands of rounded, oxyphilic, or spindle-shaped cells of medium size, with moderately small vesicular nuclei, and covered by intact mucosa with a yellow cut surface. The tumor can occur anywhere in the gastrointestinal tract (and in the lungs and other sites); approximately 90% arise in the appendix. It is now established that these tumors are of neuroendocrine origin and derive from a primitive stem cell. (From Stedman, 25th ed & Holland et al., Cancer Medicine, 3d ed, p1182)
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