Results 221 to 230 of about 163,967 (239)
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Gastric Neuroendocrine Tumors

Neuroendocrinology, 2004
Gastric carcinoids are rare neuroendocrine tumors, usually classified as type I, if associated with atrophic body gastritis; type II, if associated with Zollinger-Ellison syndrome and multiple endocrine neoplasia type I, and type III, in the absence of any gastric pathology (sporadic tumors).
DELLE FAVE, Gianfranco   +3 more
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Imaging of Neuroendocrine Tumors

Seminars in Nuclear Medicine, 2006
Neuroendocrine tumors (NETs) are rare neoplasms, which are characterized by the presence of neuroamine uptake mechanisms and/or peptide receptors at the cell membrane and these features constitute the basis of the clinical use of specific radiolabeled ligands, both for imaging and therapy.
Rufini, Vittoria   +2 more
openaire   +4 more sources

Epidemiology of Neuroendocrine Tumors

2015
Formerly named carcinoids, neuroendocrine tumors originate from diffuse endocrine cells, can involve any part of the gastrointestinal tract, endocrine pancreas and bronchopulmonary (BP) tree, and have a wide range of malignant potential. This chapter summarizes the data available on the epidemiology of neuroendocrine neoplasia (NEN) from around the ...
Fraenkel, Merav   +2 more
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Pancreatic Neuroendocrine Tumors

Surgical Pathology Clinics, 2016
Pancreatic neuroendocrine neoplasms include well-differentiated pancreatic neuroendocrine tumors (PanNETs) and neuroendocrine carcinomas (NECs) with well-differentiated PanNETs accounting for most cases. Other pancreatic primaries and metastatic carcinomas from other sites can mimic pancreatic neuroendocrine neoplasms.
Safia N. Salaria, Chanjuan Shi
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Tumor Markers in Neuroendocrine Tumors

Digestion, 2000
Most neuroendocrine tumors produce and secrete a multitude of peptide hormones and amines. Some of these substances cause a specific clinical syndrome: carcinoid, Zollinger-Ellison, hyperglycemic, glucagonoma and WDHA syndrome. Specific markers for these syndromes are basal and/or stimulated levels of urinary 5-HIAA, serum or plasma gastrin, insulin ...
Kjell Öberg   +2 more
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Chromogranin A and neuroendocrine tumors

Endocrinología y Nutrición (English Edition), 2013
Chromogranin A (CgA) is the most abundant granin in gastroenteropancreatic neuroendocrine tumors (GEP-NETs). As a tumor marker is moderately sensitive and nonspecific. Despite the limitations of testing methods, which require careful interpretation, especially in the case of gastrinomas, patients treated with somatostatin analogues, and poorly ...
José Ángel Díaz Pérez   +1 more
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Pancreatic neuroendocrine tumors

Current Opinion in Gastroenterology, 2019
Pancreatic neuroendocrine tumors (pNETs) are a rare, heterogeneous group of pancreatic neoplasms with a wide range of malignant potential. They may manifest as noninfiltrative, slow-growing tumors, locally invasive masses, or even swiftly metastasizing cancers.In recent years, because of the increasing amount of scientific literature available for ...
Giampaolo Perri   +2 more
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Neuroendocrine tumor of the rectum

The American Journal of Surgery, 2009
The authors report a case of a neuroendocrine tumor of the rectum. A 57-year-old man was revealed to have a large tumor of the rectum with invasion to the urinary bladder and seminal capsule. After resection, the tumor was revealed to be composed of neuroendocrine cells.
Yukiharu Hiyoshi   +11 more
openaire   +3 more sources

Neuroendocrine Tumors of the Pancreas

Current Treatment Options in Gastroenterology, 2004
Neuroendocrine tumors (NETs) are rare tumors of the endocrine pancreas that require a high degree of suspicion for timely diagnosis. Diagnosis is often delayed due to the nonspecific and intermittent presentation of symptoms. As many as 45% to 55% of tumors are nonfunctional and are typically diagnosed secondary to mass effect related symptoms or found
James M. McLoughlin   +2 more
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Neuroendocrine tumors of the lung

Current Opinion in Oncology, 2008
The aim of this article is to answering different questions related to the treatment and prognosis of neuroendocrine lung tumors.In neuroendocrine lung tumors, regardless of the grade of tumoral malignancy, the general growth during the past years of the nodal involvement percentage detected in lung neuroendocrine tumors might be explained by accepting
Mariano García-Yuste   +2 more
openaire   +3 more sources

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