Abstract library

108 results for "natural history".
#806 Long-Term Prognosis of Pancreatic Neuroendocrine Tumors in Von Hippel-Lindau Disease
Introduction: Management of pancreatic neuroendocrine tumours (PNET) associated with von Hippel-Lindau (VHL) disease is challenging because of their malignant potential and poorly predictable prognosis.
Conference: 11th Annual ENETS Conference (2014)
Category: Epidemiology/Natural history/Prognosis - Prognosis
Presenting Author: Louis De Mestier
#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)
Category: Non digestive NETs (bronchial, MTC, pheochromocytoma)
Presenting Author: Francesca Marciello
#751 Natural History of Resectable Large Cell Neuroendocrine Carcinoma of the Lung
Introduction: Lung large cell neuroendocrine carcinomas (LCNEC) are rare poorly differentiated carcinoma. Their natural history after surgery has been seldom studied.
Conference: 10th Annual ENETS Conference (2013)
Category: Non digestive NETs (bronchial, MTC, pheochromocytoma)
Presenting Author: Francesca Marciello
#1017 The Natural History of an Apparently Aggressive Gastric Neuroendocrine Neoplasm Type 1
Introduction: Gastric neuroendocrine neoplasm type 1 (GNEN1) is the most common GEP-NETs. GNEN1 has traditionally been considered non-metastatic as compared to the large, solitary GNEN3 that has high malignant potential.
Conference: 11th Annual ENETS Conference (2014)
Category: Clinical cases/reports
Presenting Author: Dr Krystallenia Alexandraki
Keywords: GNEN1
#1890 Natural History of Type 1 Gastric Carcinoid (gNENs) and Risk of Adenoma/Adenocarcinoma in Endoscopic Surveillance Programme
Introduction: Patients with gNENs & autoimmune gastritis are exposed to 2 malignant risks: 1)transformation of gNENs, felt to be low & guidelines advocate either resection of all lesions or selective endoscopic mucosal resection(EMR) of larger lesions; 2)ill-defined risk of gastric adenoma/adenocarcinoma.
Conference: 14th Annual ENETS conference (2017)
Category: Epidemiology/Natural history/Prognosis - Prognosis
Presenting Author: MD, MRCPI, MRCP Jun Liong Chin
Keywords: Type 1 g-NENs
#2200 Tumor Size Correlates with Grading in Nonfunctioning Pancreatic Neuroendocrine Tumors and Is Not Age-Dependent
Introduction: Tumor growth and Ki67 value increase are associated with aggressiveness in nonfunctioning pancreatic neuroendocrine tumours (NF-PanNET), but their natural history is largely unknown. It is unknown if the evolution of NF-PanNET is time-dependant.
Conference: 15th Annual ENETS conference (2018)
Category: Surgical treatment and Ablative Therapies
Presenting Author: Francesca Muffatti
#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
#802 Metastatic Type 1 Gastric Carcinoid - A Real Threat or Just a Myth?
Introduction: Metastatic GCA1 are extremely rare and there is no data about their natural history, treatment and prognosis.
Conference: 11th Annual ENETS Conference (2014)
Category: ...none of the below
Presenting Author: Dr. Simona Glasberg