Abstract library

39 results for "Ameri".
#1450 Chilean Neuroendocrine Tumours Hospital Registry: Initial Data of a Latin-America Perspective.
Introduction: Neuroendocrine tumours (NET) have increasing area of clinical and scientific research. The NET registry of the Pontificia Universidad Católica de Chile (PUC) is the first chilean database which systematically collects data on patients with neuroendocrine tumours.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: MD Marcelo Garrido
#395 Outcomes of Peptide Receptor Radionuclide Therapy (PRRT) in North American Cohort of Patients with Metastatic Well-Differentiated Neuroendocrine Tumors (mNETs)
Introduction: PRRT is an accepted treatment in Europe for patients (pts) with mNETs, but considered investigational in the USA.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Boris Naraev
#87 Alterations of E-cadherin, beta-catenin and caveolin-1 expression in gastroenteropancreatic neuroendocrine tumors
Introduction: Gastroenteropancreatic neuroendocrine tumors (GEP NETs) comprise a heterogeneous group of neoplasm with different histological patterns and biological behavior. Only limited information is available on immunohistochemical prognostic factors of disease. Alterations in the cell-cell adhesion system are closely associated with cell invasion and metastasis in many malignancies, including those of endocrine origin. Abnormal expression of E-cadherin and beta-catenin has been reported to play an important role in these processes. Caveolin-1 has recently been identified as a tumor metastasis modifier factor, which might increase the cell metastasis potential through the interaction with E-cadherin. However, the role of caveolin-1 in GEP NETs cell invasion remains unknown.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Vera V Delektorskaya
Authors: Delektorskaya V, Chemeris G, ...
#97 The role of Ki-67 in the prognosis and management of neuroendocrine (NET) patients in a multdisciplinary cancer center
Introduction: The role of Ki-67 in NETs has become increasingly important, especially in light of the current trend in oncology to incorporate pathological molecular characteristics in determining treatment. In North America, Ki-67 is used inconsistently, as there exists some debate in the literature about its predictive value.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr. Simron Singh
Authors: Singh S, Rowsel C, Ingber N, Yang S, ...
#182 Ki-67 (MIB-1) Proliferative Activity and Beta-Catenin Immunoexpression in Liver Metastases of Gastroenteropancreatic Neuroendocrine Tumors
Introduction: Assessment of liver metastases biology features associated with cell proliferation and adhesion has a strong prognostic impact in patients with gastroenteropancreatic (GEP) neuroendocrine carcinomas.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: MD, PhD Vera V. Delektorskaya
#570 Lymph-Nodal Merkel Cell Carcinoma (MCC) in the Absence of Primary Tumor: Regression of the Primary or Lymph-Nodal Primitivity? Report of a Series with Favorable Prognostic Behavior
Introduction: MCC is a rare cutaneous neuroendocrine neoplasm with aggressive behavior, a high recurrence rate and, generally, poor prognosis.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Diego Ferone
#886 Expression Patterns of Cellular Retinoic Acid Binding Protein-I in Neuroendocrine Tumors of the Lung: A Pilot Immunohistochemical Study
Introduction: Cellular retinoic acid binding protein-I (CRABP-I), a member of the lipid-binding proteins family, plays an important role in retinoic acid-mediated cell proliferation and is essential for the development of various malignant neoplasms. The actual role of CRABP-I in tumor progression remains unknown.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: Pathology, grading, staging
Presenting Author: MD, PhD Vera Delektorskaya
#1491 Do Medical Oncology Services Receive More Patients with Neuroendocrine Tumors? Assessment of This Tendency and Reflections About Its Aid Complexity
Introduction: Neuroendocrine tumors meant a change in the clinical practice, multidisciplinary approach (MA) is the gold standard today.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Epidemiology/Natural history/Prognosis - Descriptive epidemiology
Presenting Author: Carmen Salvador
#3058 Diagnosis and Assessment of Effectiveness of Surgical Resection of Small Bowel Neuroendocrine Tumours: The Roles of Circulating MicroRNAs
Introduction: MicroRNAs (miRNA) are small noncoding RNA molecules implicated in the pathophysiology of myriad neoplasms. Clinically useful biomarkers are needed in SB NET to ascertain disease aggressiveness, select treatment strategy, detect early recurrence and monitor response.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: Dr Ashley Clift
#22 A Case Illustrative of Phenotypic Heterogeneity and Challenges in the Management of Paraganglioma
Introduction: Paragangliomas (PGLs) are extra-adrenal, usually benign, highly vascularized tumors that originate from neural-crest-derived chromaffin cells. These tumors are subdivided as either sympathetic or parasympathetic, depending on their location and catecholamine production. Sympathetic PGLs are situated along the abdominal sympathetic trunk and usually produce catecholamines, whereas parasympathetic PGLs are located in the head and neck, and these usually do not produce catecholamines. PGLs may present as sporadic or inherited tumor syndrome, including MEN 2, with RET germline mutations, von Hippel-Lindau (VHL) disease due to germline mutations in VHL gene, and pheochromocytoma-PGL syndrome. The latter is frequently a hereditary condition and is caused by germline mutations in the SDHB, SDHC, or SDHC genes. Patients with familial PGLs may present at a younger age, often as multifocal tumors, with an increased risk of recurrence and a higher frequency of malignancy in those with SDHB mutations. SDH mutations induce angiogenesis and tumorogenesis through the inhibition of hypoxia-inducible factors (HIF)-propyl hyroxylase. A younger age at onset, malignancy, and a positive family history are clinical parameters of high specificity, but low sensitivity for diagnosis. Genetic analysis for mutations in SDH genes for the patient and family members, and surveillance for the affected patient and family members, are necessary where there are no clear clinical or family indicators for the syndrome. We present a case of a large abdominal malignant PGL in a 20-year-old pt. that went on without clinical detection for at least three years.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Mohammed Ahmed