Abstract library

28 results for "GI bleeding".
#2712 HORMONET: Study of Tamoxifen in Well Differentiated Neuroendocrine Tumors (NET) and Hormone Receptor Positive Expression
Introduction: We have shown immunohistochemistry (IHC) expression of estrogen (ER) and progesterone receptors (PR) in 20.8% and 18.8% of 96 NET patients (pts). An old clinical trial (Mortel C, 1984) suggested antitumor effects of estrogen/progesterone-directed therapies in NET. Yet the effects of an antiestrogen agent in NET pts whose tumor express ER and/or PR are unknown.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Trials in Progress/Trials in Concept
Presenting Author: Prof Rachel Riechelmann
#2740 Long-Term Complete Response in Metastatic Poorly-Differentiated Neuroendocrine Rectal Carcinoma with Multimodal Approach. A Case Report
Introduction: Rectal neuroendocrine carcinomas (NEC) are extremely rare and account for less than 1% of colorectal malignancies.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Medical Doctor Pietro Maria Lombardi
#3031 Primitive Peripheral Neuroectodermal Tumor: Case Report
Introduction: Primitive neuroectodermal tumors belong to the family of Ewing sarcomatous tumors, all derived from the same stem cell. The cells of the neural crest are believed to be at the origin of these tumors. The predilection sites of these sarcomas are para-vertebral region, chest wall and the distal ends. The positive diagnosis of primary neuroectodermal tumors requires the contribution of histopathology, immunohistochemistry and cytogenetics.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Boublenza Ikram
Authors: Ikram B, Soumeya G, ...
#3076 Endometrial Small Cell Neuroendocrine Carcinoma: Case Report and Literature Review
Introduction: Endometrial small-cell neuroendocrine carcinoma (ESCNEC) is extremely rare. It is characterized by early regional and systemic spread leading to rapid development of lymph nodes, pelvic and extrapelvic metastasis and compromising the outcome.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Dr Mohammed Alaeddine Saidi
Authors: Aris H, Ghomari S, ...
#3089 Mixed Large and Small Cell Neuroendocrine Carcinoma of the Endometrium: A Case Report and Literature Review
Introduction: Neuroendocrine carcinoma (NEC) is an extremely rare subtype of endometrial cancer which is usually seen among perimenopausal or postmenopausal women. It runs an aggressive course and posts a clinical challenge due to limited treatment options available.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: Dr Mary Anne Cruz
Authors: Cruz M A, Uyboco J, ...
#36 A monocentric analysis of patients with pulmonary neuroendocrine tumors over 15 years: long term survival and life quality dependent from histological subtypes and surgical management
Introduction: Pulmonary neuroendocrine tumors substantially differ from epithelial tumors in terms of tumor biology and prognosis. In specialized interdisciplinary centers, a broad therapeutical armentarium can be used to achieve optimal treatment.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Prof. Johannes N Hoffmann
Authors: Zahn S, Hornung H, Schick K S, Winter H, ...
#101 Chronic Complications of Peptide Receptor Radionuclide Therapy (PRRT)- A Single Center Experience
Introduction: In the last decade, a new treatment modality, peptide receptor radionuclide therapy (PPRT), has been introduced for gastroenteropancreatic neuroendocrine tumor (GEPNET) patients with non-resectable or progressive disease. PRRT has been associated with several complications, including bone marrow suppression, renal toxicity and hepatic damage.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Merav Fraenkel
#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
#122 Molecular genetic findings in gastric carcinoid suggest possible neurofibromin/Ras pathway involvement in carcinoid pathogenesis
Introduction: The molecular pathogenesis of gastrointestinal carcinoid tumours is poorly understood. We have been undertaking molecular genetic investigations of a young woman with neurofibromatosis type 1 (NF1) in whom a gastric carcinoid tumor was detected following an episode of gastrointestinal bleeding. She was otherwise relatively mildly affected by NF1. In NF1, gastric carcinoids have been found previously only in patients with other predisposing factors, which were absent in this patient.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Edward S Tobias
#649 Poorly Differentiated Rectal Neuroendocrine Tumors: A Report of Three Cases
Introduction: Rectal neuroendocrine tumors (NETs) are rarely seen, representing only 1% to 2% of all rectal tumors, and 17% gastrointestinal NETs. They are classified by site of tumor origin and by degree of differentiation.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Pathology, grading, staging
Presenting Author: Arzu Yaren
Keywords: rectum NEC