Results 21 to 30 of about 20,732 (116)

Case report: Indocyanine green fluorescence-guided imaging in laparoscope, a more sensitive detection technique of lateral lymph nodes metastases from rectal neuroendocrine tumors

Frontiers in Oncology, 2022
BackgroundThe diagnosis and surgical strategy of lateral lymph node metastases of rectal neuroendocrine tumors are still controversial. At present, the major diagnostic means rely on imaging examinations, but will be affected by the size of lymph nodes ...
Yueyang Zhang, Yi Zhang, Yi Yang, Zheng Xu, Changyuan Gao, Meixi Liu, Wenjia Zhu, Hong Zhao, Haitao Zhou   +8 more
doaj   +1 more source

Endoscopic diagnosis and treatment of neuroendocrine tumors of the digestive system

Open Medicine, 2016
The authors evaluated the role of endoscopic techniques in the diagnosis and in the potential treatment of neuroendocrine tumors (NET) localized in the gastro-entero-pancreatic system, on the basis of their experience and of the international literature.
Sivero Luigi, Telesca Donato Alessandro, Ruggiero Simona, Russo Teresa, Amato Maurizio, Bianco Tommaso, Amato Bruno, Formisano Cesare, Avellino Manuela, Napolitano Vincenzo   +9 more
doaj   +1 more source

Downgrading of a G3 Neuroendocrine Tumor to a G2 Tumor: Can First-Line Cytotoxic Chemotherapy Change the Tumor Biology?

Case Reports in Oncology, 2017
The antiproliferative treatment options for neuroendocrine tumors (NET)/neuroendocrine carcinomas of the gastrointestinal tract critically depend on the proliferation rate, evaluated by immunohistochemical staining for Ki-67.
Andreas Blesl, Elisabeth Krones, Marion J. Pollheimer, Johannes Haybaeck, Ulrike Wiesspeiner, Rainer W. Lipp, Patrizia Kump   +6 more
doaj   +1 more source

18F-FDG PETCT and 68Ga-DOTA PETCT mismatch with in vivo histopathological characterization of low-grade neuroendocrine pancreatic tumor

European Journal of Hybrid Imaging, 2021
Background Pancreatic neuroendocrine tumor (PNET) is a subgroup of neuroendocrine tumor (NET) that has unique biology and natural history. The histological classification has a major role in the management of this pathology, but in recent years Gallium ...
Marcello Moro Queiroz, Carlos Diego Holanda Lopes, Alessandra Corte Real Salgues, Felipe de Galiza Barbosa, Emerson Shigueaki Abe, Thales Parenti Silveira, Marcel Cerqueira Cesar Machado, Fernanda Cunha Capareli   +7 more
doaj   +1 more source

Gastric Neuroendocrine Tumor Mimicking Gastrointestinal Stromal Tumor: A Case Report

Case Reports in Oncology, 2021
Gastric neuroendocrine tumors (NETs) are rare lesions that arise from enterochromaffin-like cells of the gastric mucosa. Gastric NETs are classified into 3 types of NETs and poorly differentiated neuroendocrine cancers.
Jin Lee, Sung Jin Oh
doaj   +1 more source

Treatment modalities favoring outcome in well-differentiated neuroendocrine tumors G3

Frontiers in Endocrinology
IntroductionNeuroendocrine neoplasms (NEN) are a rare and heterogenous group of tumors arising from neuroendocrine cells in multiple organs. Neuroendocrine tumors (NET) G3 encompass a small subgroup accounting for less than 10% of all neuroendocrine ...
Martina Hinterleitner, Martina Hinterleitner, Martina Hinterleitner, Ruben Pfeiffer, Nils F. Trautwein, Nils F. Trautwein, Bence Sipos, Bence Sipos, Bence Sipos, Stephan Singer, Stephan Singer, Silvio Nadalin, Silvio Nadalin, Alfred Königsrainer, Alfred Königsrainer, Ulrich M. Lauer, Ulrich M. Lauer, Ulrich M. Lauer, Ulrich M. Lauer, Christian la Fougère, Christian la Fougère, Christian la Fougère, Christian la Fougère, Lars Zender, Lars Zender, Lars Zender, Lars Zender, Clemens Hinterleitner, Clemens Hinterleitner, Clemens Hinterleitner, Clemens Hinterleitner   +30 more
doaj   +1 more source

Relationship between clinical characteristics and survival of gastroenteropancreatic neuroendocrine neoplasms: A single-institution analysis (1995–2012) in South China

BMC Endocrine Disorders, 2012
Background Gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN) is the most common type of neuroendocrine tumors accounting for 65–75% of neuroendocrine neoplasms (NENs).
Wang Yu-hong, Lin Yuan, Xue Ling, Wang Jin-hui, Chen Min-hu, Chen Jie   +5 more
doaj   +1 more source

Pedunculated gastric neuroendocrine tumor: a case report

Endoscopy International Open, 2016
Background and study aims: Gastric neuroendocrine tumors (NETs) are rare lesions that develop from neuroendocrine cells. NETs are classified into 3 types based on the rate of mitosis and Ki-67 labeling index; the NET G1 type is synonymously referred to ...
Kenichi Takeda, Shin-ei Kudo, Fumio Ishida   +2 more
doaj   +1 more source

Primary carcinoid tumors at atypical sites: surgery is mandatory and size determines survival—an Egyptian study

Bulletin of the National Research Centre, 2019
Background Carcinoids at atypical sites are rare and mostly asymptomatic. In the majority, they show normal levels of serotonin and its metabolites in plasma and urine, resulting in a relatively late diagnosis and hence guarded prognosis.
Karim G. Moustafa, Gamal M. Saied
doaj   +1 more source

Assessing the Relationship between Gastrointestinal and Pancreatic Neuroendocrine Tumor Grade and Overall Survival: A Systematic Review and Meta-Analysis

Gastrointestinal Disorders, 2023
Background: Neuroendocrine tumors (NET) are a rare group of epithelial neoplasms present in the gastrointestinal tract (GI) (67.5%) and bronchopulmonary tree (25.3–30%), and in 15% of cases, their primary sites cannot be identified.
Preeti Malik, Neel Patel, Azadeh Khayyat, Muhammad Asad, Sameer Dawoodi, Sangeetha Chandramohan, Nkechi Unachukwu, Bibimariyam Nasyrlaeva, Laseena Vaisyambath, Sriram B. Chowdary, Vikramaditya Samala Venkata, Urvish Patel   +11 more
doaj   +1 more source