Results 121 to 130 of about 132,293 (166)

Neuroendocrine tumors of the diffuse neuroendocrine system

Current Opinion in Oncology, 2008
Neuroendocrine tumors (previously referred to as carcinoids) are ill-understood, enigmatic malignancies that, although slow-growing compared with adenocarcinomas, can behave aggressively. In 2004, they comprised 1.25% of all malignancies; their incidence is increasing by approximately 6% per year.
Björn I, Gustafsson, Mark, Kidd, Irvin M, Modlin   +2 more
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Theragnostic in neuroendocrine tumors

The Quarterly Journal of Nuclear Medicine and Molecular Imaging, 2022
In the last few decades, the incidence and prevalence of neuroendocrine tumors has been increasing. The theragnostic approach, that allows the diagnosis and treatment of different neoplasms with the same ligand, is a typical nuclear medicine tool. Applied for years, is also pivotal in neuroendocrine tumors (NETs) where it has improved the diagnostic ...
Marini I., Sansovini M., Bongiovanni A., Nicolini S., Grassi I., Ranallo N., Monti M., Iorio V. D. I., Germano L., Caroli P., Sarnelli A., Paganelli G., Severi S.   +12 more
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Imaging of Neuroendocrine Tumors

Expert Opinion on Medical Diagnostics, 2016
Neuroendocrine tumors (NETs) comprise a heterogeneous group of malignancies with a very variable clinical expression and progression. They present unique properties that are important to consider for radiological and nuclear imaging, such as APUD-characteristics (amine precursor uptake and dearboxylation), as well as the expression of somatostatin ...
Kjell, Öberg, Anders, Sundin
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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.
Koichi, Suyama, Naoko, Hayashi, Hironobu, Shigaki, Nobutaka, Sato, Kotaro, Hirashima, Yohei, Nagai, Yukiharu, Hiyoshi, Yasuo, Sakamoto, Naoya, Yoshida, Eiichiro, Toyama, Masayuki, Watanabe, Hideo, Baba   +11 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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Neuroendocrine Tumors of the Lung

Thoracic Surgery Clinics, 2021
Pulmonary neuroendocrine tumors (NETs) are relatively rare; however, their incidence is steadily increasing. They now comprise 1% to 2% of all lung cancers. Lung NETs are classified based on the World Health Organization classification into low-, intermediate-, and high-grade tumors.
Simran, Randhawa, Nikolaos, Trikalinos, G Alexander, Patterson   +2 more
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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 ...
K, Oberg, E T, Janson, B, Eriksson
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Pancreatic Neuroendocrine Tumors

Endocrine Research, 2011
Pancreatic neuroendocrine tumors (PNETs) are rare neoplasms representing
Elizabeth, Batcher, Paul, Madaj, Andrew G, Gianoukakis   +2 more
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Pulmonary Neuroendocrine Tumors

Surgical Pathology Clinics, 2020
Pulmonary neuroendocrine tumors represent a morphologic spectrum of tumors from the well-differentiated typical carcinoid tumor, to the intermediate-grade atypical carcinoid tumor, to the high-grade neuroendocrine carcinomas composed of small-cell carcinoma and large-cell neuroendocrine carcinoma.
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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 ...
Perri G., Prakash L. R., Katz M. H. G.
openaire   +2 more sources