Abstract library

1740 results for "tumor detection".
#88 EpCam expression and detection of circulating tumor cells in neuroendocrine tumors
Introduction: Using the CellSearchTM system, circulating tumor cells (CTCs) can be reproducibly enumerated according to expression of EpCAM and cytokeratins 8, 18 or 19 and the absence of the haemopoietic marker CD45. The number of CTCs detected in 7.5 mls blood has been shown to correlate with prognosis in breast, colon and prostate cancer and can predict response to therapy. Neuroendocrine tumors (NETs) have not previously been reported to express EpCAM and have not been systematically assessed for presence of CTCs. We have therefore explored the expression of EpCAM in NETs and the detection of NET cells in the circulation.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Mohid S Khan
#20 Paraneoplastic antigen Ma2 (PNMA2) auto-antibodies as biomarkers for early small intestine neuroendocrine tumors detection
Introduction: Small intestine neuroendocrine tumors (NETs) comprise well-differentiated NET (benign carcinoid), well-differentiated neuroendocrine carcinoma (malignant carcinoid) and poorly differentiated neuroendocrine carcinoma (NEC). The majority of NET patients have developed liver metastases at the time of diagnosis and surgery is then seldom curative. Novel predictive, diagnostic and prognostic markers are thus needed to improve our capabilities to diagnose and cure these tumors. We have previously identified six novel marker genes for neuroendocrine tumor cells by using Affymetrix microarrays and advanced bioinformatics. One of this markers, the paraneoplastic antigen Ma2 (PNMA2), which is normally expressed only in nervous tissue, can in the process of carcinogenesis be detected in tumors located outside the nervous system. The finding that Ma2 is expressed in small intestine neuroendocrine primary tumors and their metastases made it interesting to screen whether antibodies against Ma2 are present in the serum of NET patients.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: PhD Valeria Giandomenico
Authors: Cui T, Elgue G, Li S C, Hurtig M, ...
#159 Detection of cardiac metastases in patients with neuroendocrine tumors: comparison of Ga-68 DOTA-SMS-R PET/CT, cardiac MRI, CT scan and 2D echocardiography
Introduction: Neuroendocrine tumor metastases to the heart have been sparsely reported in literature. There is as of yet no detailed study on the best imaging method for the detection of this rare site of metastases.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr. Vikas Prasad
Authors: Prasad V, Ali S, Secknus M A, Lauer B, ...
#14 Radioguided surgery in NET: First impression with Ga-68 labeled somatostatin analogues
Introduction: Neuroendocrine tumors (NET) constitute a heterogenous group of neoplasms. The development of Gallium-68-labeled somatostatin analogues, such as DOTA-NOC or DOTA-TOC, PET/CT have dramatically improved the diagnosis of neuroendocrine tumors. Surgery remains the treatment of choice for localized disease as well as metastatic disease. The aims of surgery are: improvement of symptoms, reduction of tumor mass / burden and to give better quality of life to patients. Recurrent laparotomies often lead to multiple adhesions and altered anatomy. So it is increasingly difficult for imaging physicians and surgeons to separate non-malignant from malignant tissue.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr. Daniel Kaemmerer
#442 Low Diagnostic Accuracy of Tumor Markers for the Annual Screening of Pancreatic Neuroendocrine Tumors in MEN-1 Patients
Introduction: The use of tumor markers for annual screening for pancreatic neuroendocrine tumors (pNET) in Multiple Endocrine Neoplasia type 1 (MEN-1) is debatable because of low-level evidence and high costs.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: MD PhD Gerlof Valk
#541 Contrast-Enhanced Ultrasound (CEUS) is a Helpful Tool to Predict the Effectiveness of Somatostatin Analogues in Patients with Liver Metastases From Neuroendocrine Tumors
Introduction: Contrast-enhanced ultrasonography (CEUS) allows characterization of the micro-vascularization of tumor lesions. Liver metastases (LM) from neuroendocrine tumors (NET) show a typical pattern on CEUS, consistent with a rapid, intense and homogeneous enhancement (hypervascular pattern) in the arterial phase.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Dr. Valeria Ramundo
#62 Genome-wide DNA methylation profiling of pancreatic neuroendocrine tumors identifies distinct methylation profiles and differentially methylated gene promoter regions associated with low, medium and high grade tumors
Introduction: Integration of genetics and epigenetics has emerged as a powerful approach to studying cellular differentiation (Mikkelsen et al, 2009) and tumorigenesis (Shen et al, 2007). The study of DNA methylation is of particular importance in cancer, as causal involvement has been demonstrated and it is the most stable of all epigenetic modifications, making it a desirable marker for both early detection and treatment of tumors. Hypermethylation of CpG sites in gene promoter regions leads to decreased gene expression; if such a gene is a tumor suppressor, this leads to carcinogenesis. To date, there have been no studies of genome-wide DNA methylation profiling of NETs. This study sets out to determine the DNA methylation profiles of low, intermediate and high grade pancreatic NET liver metastases with the intention of identifying dysregulated biological pathways in the development of these tumors. A protocol for the analysis formalin-fixed paraffin embedded tissue (FFPE) has also been developed in order to study these tumors in significant numbers following this pilot study.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Christina Thirlwell
#1140 Incremental Benefit of Preoperative Endoscopic Ultrasound for the Detection of Pancreatic Neuroendocrine Tumors: A Meta-Analysis
Introduction: Current guidelines recommend computed tomography (CT) scan or magnetic resonance imaging as the initial imaging modalities for the work-up of suspected pancreatic neuroendocrine tumors (PNETs).
Conference: 12th Annual ENETS Conference (2015)
Category: Imaging (radiology, nuclear medicine, endoscopy)
Presenting Author: M.D, Ph.D. Apostolos Tsolakis
#292 Early Detection of Gastric GIST Tumor in a Patient with Rectal Neuroendocrine Cancer – A Case Report
Introduction: A case of a 60-year-old man with rectal neuroendocrine cancer, in whom gastric GIST tumor was detected in March 2009, is presented.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: professor Gabriela Melen-Mucha
Authors: Mucha S, Komorowski J, ...
#315 The Impact of 68Ga-DOTATOC PET/CT on the Multimodal Management of Patients with Neuroendocrine Tumors
Introduction: Accurate assessment of the primary tumor site and the extent of the metastatic burden are crucial and can be challenging, however, it is essential to the choice of optimal patient-tailored management.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Prof. Andrea Frilling