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Successful Treatment with ¹⁷⁷Lutetium-Dotatate and Maintenance Octreotide in a Patient with Esthesioneuroblastoma with Central Nervous System Invasion: Case Report and Review of the Literature

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International Journal of Otolaryngology and Head & Neck Surgery 2023年第1期12卷 8-20页

作者： Gabriela Dombrowski Laura Fernandes Ferreira Dalcin Francisco Assis Coelho Patricia Massucheto Ledesma Daniel Herchenhorn Department of Clinical Oncology Instituto D’Or de Pesquisa e Ensino Rio de Janeiro Brazil Clínica de Diagnóstico por Imagem CDPI DASA Instituto D’Or de Pesquisa e Ensino Rio de Janeiro Brazil Clínica de Medicina Nuclear Villela Pedras Clínica de Diagnóstico por Imagem CDPI DASA Rio de Janeiro Brazil

This article presents a case of a patient with relapsed esthesioneuroblastoma (ENB), an aggressive rare tumor that arises from the specialized sensory epithelial olfactory cells in the skull base area, which was initially treated with endoscopic surgery, followed by adjuvant radiotherapy. After local relapse, new surgical approaches and subsequent lines of platin-based chemotherapy were performed. A PET-CT with 68GALIUM DOTATATOC (PET-DOTATOC) showed intense uptake of disease, compatible with the presence of somatostatin receptors, in the face, nodes, liver, bones, and meningeal area. Treatment with 4 cycles of 177Lutetium-Dotatate was performed, followed by maintenance octreotide, with a major radiological and clinical response that is lasting more than 1 year after treatment. This article describes a rare case of a skull-base tumor, with multiple recurrences, in which disease control was achieved with a targeted Peptide Receptor Radionuclide Therapy (prrt) with 177Lutetium-Dotatate, and discusses factors that could influence the incorporation of this form of therapy. Previous case reports proved the potential efficacy of this therapy usually given for low-grade neuroendocrine tumors and will be carefully reviewed.

关键词： Esthesioneuroblastoma Olfactory Neuroblastoma Peptide Receptor Radionuclide Therapy prrt 177Lutetium

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Surgical treatment of non-functioning pancreatic neuroendocrine tumors:current controversies and challenges

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Journal of Pancreatology 2020年第2期3卷 51-58页

作者： Memeh Kelvin O. Vaghaiwalla Tanaz Keutgen Xavier M. Section of Endocrine Surgery Division of General Surgery and Surgical OncologyDepartment of SurgeryThe University of Chicago MedicineChicagoILUSA

There has been a rising trend in the incidence and prevalence of non-functioning pancreatic neuroendocrine tumors(NFPanNETs).While a significant number of the newly diagnosed NFPanNETs are asymptomatic,a majority of patients will present with liver metastasis(LM)at the time of *** resection remains the only curative treatment,especially for localized *** a majority of small NFPanNETs are indolent,some are *** heterogeneity in tumor biology presents the surgeon with the unique challenge of determining which patient will benefit from surgery,given the morbidity of pancreatic *** has been a recent push for a more aggressive approach to the care of these patients,given the emergence of data supporting such ***,the risk of over or under treatment has generated immense debate amongst experts in the *** heterogeneity of current practice guidelines and institutional practices around the world is a reflection of the disparate opinion on the management of *** this review,we set out to examine the evidence regarding some of the most controversial and challenging aspects of the surgical treatment of *** evaluate the following questions;should patients with small NFPanNETs≤2 cm in size be resected;should patients with metastatic NFPanNETs undergo surgical debulking,and should there be resection of the primary tumor in the setting of non-resectable metastatic disease?Although there are currently no Level 1 data to answer these questions conclusively,we believe that the current literature supports a more aggressive approach to the management of NFPanNET.

关键词： Carcinoid tumors Enucleation Liver debulking Neuroendocrine cancer Neuroendocrine tumor Pancreatic enucleation Pancreatic tumor prrt Somatostatin analog

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Research on Chaos Characteristic of Chinese Telecom Industry System Based on PSRT

Research on Chaos Characteristic of Chinese Telecom Industry...

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2010 2nd IEEE International Conference on Advanced Management Science（IEEE ICAMS 2010）

作者： FeiChen XiaoHang Zhang Dept. Economics and Management Beijing University of Posts and Telecommunications Beijing China

In this paper, the chaos characteristic of the time sequence of the traffic of telecom industry is analyzed through the Phase Space Reconstruction Technique （PSRT） and correlation dimension method. Firstly, the data on some fixed time delay points is processed as new dimension data, forming a new phase space. Then the extent of the chaos of the system is estimated through the correlation dimension which is solved by G-P algorithm and correlation function. The correction dimension which is not greater than 3 we solved indicates that the telecommunication industry is a low-dimensional chaos system which has fractal feature.

关键词： the traffic of telecom industry chaos prrt correlation dimension

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