Results 51 to 60 of about 2,487 (162)

Differences in Endoscopic Features of Gastric Neuroendocrine Tumor and Neuroendocrine Carcinoma From a Clinicopathological Perspective

open access: yesJGH Open, Volume 9, Issue 9, September 2025.
ABSTRACT Gastric neuroendocrine neoplasms are a rare type of stomach cancer, classified into well‐differentiated neuroendocrine tumors (NETs) and poorly differentiated neuroendocrine carcinomas (NECs). Gastric NETs (G‐NETs) originate from endocrine progenitor cells in the basal layer of the mucosa, primarily in the setting of chronic atrophic gastritis,
Katsunori Matsueda   +4 more
wiley   +1 more source

De novo Gastrinoma: A Case Report

open access: yesGE: Portuguese Journal of Gastroenterology, 2019
Gastrinomas are neuroendocrine tumors characterized by gastrin overexpression – 80% are sporadic and 20% are associated with multiple endocrine neoplasia type 1.
Arsénio Barbosa   +4 more
doaj   +1 more source

Cholecystokinin: Clinical aspects of the new biology

open access: yesJournal of Internal Medicine, Volume 298, Issue 3, Page 251-267, September 2025.
Abstract Cholecystokinin (CCK) is a classic gut hormone that has been known for almost a century to regulate gallbladder emptying, pancreatic enzyme secretion, and gastrointestinal motor activity. In 1968, the CCK structure was identified by Viktor Mutt and Erik Jorpes from porcine gut extracts as a peptide of 33 amino acid residues.
Jens F. Rehfeld
wiley   +1 more source

Zollinger-Ellison Syndrome: A Narrative Review of Clinical Presentation, Pathogenesis, Diagnosis and Modern Management Approaches [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Zollinger-Ellison Syndrome (ZES) is rare disorder which is caused by gastrin-secreting neuroendocrine tumours known as gastrinomas, primarily located in the duodenum or pancreas.
Jaideep Reddy   +4 more
doaj   +1 more source

Type 2 and type 3 gastric neuroendocrine tumors have high risk of lymph node metastasis: Systematic review and meta‐analysis

open access: yesDigestive Endoscopy, Volume 37, Issue 8, Page 834-843, August 2025.
Objectives Lymph node metastasis (LNM) is crucial in determining treatment strategies for gastric neuroendocrine tumors (gNETs). While type 3 is considered more aggressive than types 1 and 2 within the clinical subtype of gNETs, the supporting data were insufficient, due to their rarity. We aimed to study the prevalence and risk factors associated with
Yohei Ogata   +9 more
wiley   +1 more source

Evolution of clinical ideas about Zollinger-Ellison syndrome

open access: yesТерапевтический архив, 2014
The paper gives the current views of the diagnosis and treatment of Zollinger-Ellison syndrome (ZES). It underlines the importance of including ZES in differential diagnosis in patient with frequently recurrent and standard-dose proton pump inhibitor ...
I V Maev   +3 more
doaj  

Sporadic duodenal macrogastrinoma: a rare case report

open access: yesActa Medica Lituanica, 2013
Gastrinomas are rare neuroendocrine tumors characterized by the secretion of gastrin, which causes hyperchlorhydria, thereby producing the Zollinger-Ellison syndrome. In most cases this syndrome manifests as severe peptic ulcer disease. We are presenting
Dainius Šimčikas   +5 more
doaj   +1 more source

Zollinger–Ellison syndrome: modern aspects of diagnostics and treatment

open access: yesРоссийский журнал гастроэнтерологии, гепатологии, колопроктологии, 2014
The aim of review. To reflect modern concepts on clinic, diagnostics and treatment of Zollinger–Ellison syndrome (ZES).Key points. ZES is rare disease related to intragastric hyperacidity.
I. V. Mayev   +3 more
doaj  

Gastrinoma

open access: yes, 2021
null Dan G. Gridley, MD   +2 more
  +5 more sources

Zollinger–Ellison syndrome in a 12-year-old child

open access: yesJournal of Indian Association of Pediatric Surgeons, 2017
The syndrome described by Zollinger and Ellison in 1955 is a rare clinical entity which is even rarer in children. This report describes a 12-year-old boy who presented with refractory peptic ulcer disease which was finally diagnosed to be due to a ...
Abir Lal Nath   +5 more
doaj   +1 more source

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