منابع مشابه
Low Grade Neuroendocrine Tumors of the Lung
The lung is the second most common site of neuroendocrine tumors (NETs). Typical and atypical carcinoids are low-grade NETs of the lung. They present a favorable prognosis comported to the more common high-grade NETs. The low- and high-grade NETs require different treatment strategies; effective management of these tumors is essential to prolong survival and to manage the symptoms in patients w...
متن کاملENETS Consensus Guidelines for High-Grade Gastroenteropancreatic Neuroendocrine Tumors and Neuroendocrine Carcinomas.
a Medical Oncology Department, Hospital Universitario Doce de Octubre, Madrid , Spain; b Department of Oncology, Haukeland University Hospital, Bergen , Norway; c Institut Gustave Roussy, Villejuif , and d Oncologie Médicale, Hôpitaux Universitaires Paris Nord Val de Seine, Paris , France; e Department of Hepatology and Gastroenterology, Campus Virchow Klinikum, Charité Universitätsmedizin Berl...
متن کاملDetermination of CD117 Expression in Glial Tumors and Its Comparison between High Grade and Low Grade Tumors
Background and Objective: Gliomas are the most common primary brain tumors. Despite therapeutic advances, the majority of gliomas do not respond to either chemo or radiotherapy. CD117, the gene product of c-kit has been expressed in cells of glial tumors. Because gastrointestinal stromal tumors (GISTs) that express CD117 respond dramatically to treatment with tyrosine kinase inhibitors, ide...
متن کاملWell-Differentiated Neuroendocrine Tumors with a Morphologically Apparent High-Grade Component: A Pathway Distinct from Poorly Differentiated Neuroendocrine Carcinomas.
PURPOSE Most well-differentiated neuroendocrine tumors (WD-NET) of the enteropancreatic system are low-intermediate grade (G1, G2). Elevated proliferation demonstrated by either a brisk mitotic rate (>20/10 high power fields) or high Ki-67 index (>20%) defines a group of aggressive neoplasms designated as high-grade (G3) neuroendocrine carcinoma (NEC). High-grade NEC is equated with poorly diff...
متن کاملPancreatic neuroendocrine neoplasms at magnetic resonance imaging: comparison between grade 3 and grade 1/2 tumors
BACKGROUND The grading of pancreatic neuroendocrine neoplasms (PanNENs) is associated with the choice of treatment strategy. The aim of this study is to identify the magnetic resonance imaging (MRI) features in differentiating pancreatic neuroendocrine tumors (PanNETs) grade 1/2 (G1/G2) and pancreatic neuroendocrine carcinoma grade 3 (PanNEC G3). PATIENTS AND METHODS A total of 59 patients wi...
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ژورنال
عنوان ژورنال: Journal of Thoracic Oncology
سال: 2019
ISSN: 1556-0864
DOI: 10.1016/j.jtho.2019.08.196