Abstract library

127 results for "natural history".
#2809 Sporadic Neuroendocrine Neoplasms in Young Adult Patients: Natural History, Prognosis and Management
Introduction: Data specific to sporadic neuroendocrine neoplasms (NEN) in young adult patients (pts) are limited due to its rare occurrence.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: MD Barbara Altieri
#2813 Clinical Presentation and Prognosis of Patients with Medullary Thyroid Cancer
Introduction: Medullary thyroid carcinoma (MTC) is a rare type of tumor that originates from parafollicular C-cells and accounts for 3–4% of all malignant thyroid neoplasms. MTC presents as sporadic (75–80%) or inherited tumors (20–25%). Hereditary MTC is part of multiple endocrine neoplasia type 2 (MEN2).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Federica de Cicco
#3035 Large-Cell Neuroendocrine Carcinoma of the Lung in Elderly Patient: Case Report and Review of Literature
Introduction: Lung neuroendocrine tumors account for less than 25% of lung cancers.Which is a rare malignant tumor with an aggressive profile has often already affected lymph nodes at presentation and it is de novo metastatic in nearly 40% of cases.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Hanane Aliane
Authors: Aliane H, Ghomari S, ...
#2700 Pancreatic Neuroendocrine Neoplasms and Liver Metastases: When Size Matters
Introduction: Small non-functioning pNENs are low grade indolent tumors, however distant metastases have also been documented in this subset of patients
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Surgical treatment and Ablative Therapies
Presenting Author: MD Michela Monteleone
#2774 Metastatic Merkel Cell Carcinoma Associated Paraneoplastic Hyponatraemia: Response to Avelumab
Introduction: Merkel cell carcinoma (MCC) is rare, encompassing primary cutaneous neuroendocrine carcinoma.It has an aggressive natural history, and exhibits high response rates to radiotherapy & chemotherapy but often of short duration.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Dr Elspeth Saunders
Authors: Saunders E, Demirel S, Kim S, Skelly R, ...
#2854 A Meta-Analysis of the Accuracy of a Neuroendocrine Tumor mRNA Genomic Biomarker (NETest) in Blood
Introduction: The lack of an accurate blood biomarker in neuroendocrine tumor (NET) disease impedes effective management.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: MD, PhD Lisa Bodei
Authors: Öberg K, Califano A, Strosberg J, Ma S, ...
#104 Myocardial motion abnormalities in patients with carcinoid disease without overt carcinoid heart disease
Introduction: Cardiac abnormalities occur in 15-70% of patients with carcinoid disease, typified by fibrosis of the right-sided valves. Myocardial motion abnormalities in subjects without overt carcinoid heart disease have not been previously described. Tissue Doppler Imaging (TDI) allows quantative analysis of myocardial motion. We used this technique to investigate whether myocardial motion is reduced, suggesting fibrosis, in patients with carcinoid disease.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Christopher Wong
#106 Gastroenteropancreatic neuroendocrine tumors: single institution clinicopathological study
Introduction: Neuroendocrine cells are widely distributed throughout the body, and neoplasms from these dispersed cells can arise at many sites. They are distinguished into two broad categories: 1) Tumors identified as small cell lung carcinomas with biology and natural history of a high-grade malignancy and characteristics of small cell undifferentiated or anaplastic appearance by light microscopy. The WHO categorizes these tumors as poorly-differentiated neuroendocrine carcinomas; 2) Well-defined neuroendocrine tumors (NETs) with variable, but most lyindolent biologic behavior and characteristic well-differentiated histologic features. The majority arise in the gastrointestinal tract and collectively they are referred as gastroenteropancreatic neuroendocrine tumors (GEP/NETs). They include carcinoid tumors, pancreatic islet cell tumors (gastrinoma, insulinoma, glucagonoma, VIPoma, somatostatinoma), paragangliomas, pheochromocytomas, and medullary thyroid carcinomas. The WHO classifies the GEP/NETs as well-differentiated NETs (carcinoid tumors) if they are noninvasive and have benign behavior or uncertain malignant potential. In contrast, GEP/NETs with characteristics of low-grade malignancy with invasion of the muscularis propria or beyond, or metastases, are characterized as well-differentiated neuroendocrine carcinomas (malignant carcinoids). Pancreatic islet cell tumors, whether functioning or not, are classified as well-differentiated NETs or well-differentiated neuroendocrine carcinomas, due to the (depending on) histologic characteristics. The WHO classification for gastroenteropancreatic NETs based on stage (ie size and presence of metastases) and grade (mitotic rate, perineural and lymphovascular invasion, Ki-67 proliferative index) categorizes them as well-differentiated NETs, e.g., carcinoid tumors, or as well-differentiated neuroendocrine carcinomas.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Michael M. Vaslamatzis
#120 Somatostatin receptors 1-5 expression in a large series of well-differentiated neuroendocrine tumors
Introduction: For their antisecretive and antiproliferative effect somatostatin analogs (SA) have been used in the treatment of neuroendocrine tumors (NETs), based on the expression of somatostatin receptors (sstRs). The potential availability of new SA for the treatment of patients with NETs suggests a better characterization of sstRs.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Paola Loli
#749 Natural History of Atypical Carcinoid of Lung After Surgery
Introduction: The natural history of atypical carcinoid (AC) is poorly known.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Non digestive NETs (bronchial, MTC, pheochromocytoma)
Presenting Author: Francesca Marciello