Results 21 to 30 of about 205,939 (352)

P53, Somatostatin receptor 2a and Chromogranin A immunostaining as prognostic markers in high grade gastroenteropancreatic neuroendocrine neoplasms

open access: yesBMC Cancer, 2020
Background High grade gastroenteropancreatic (GEP) neuroendocrine neoplasms (NEN) with a Ki67 proliferation index > 20%, include well-differentiated tumours grade 3 (NET G3) and poorly differentiated (PD) neuroendocrine carcinomas (NEC).
Kirstine Nielsen   +8 more
doaj   +1 more source

Recent epidemiology of patients with gastro-entero-pancreatic neuroendocrine neoplasms (GEP-NEN) in Japan: a population-based study

open access: yesBMC Cancer, 2020
Background The worldwide prevalence and incidence of neuroendocrine neoplasms (NEN) have been increasing recently, although few studies have analyzed data on the current situation of NENs in Japan.
Toshihiko Masui   +4 more
doaj   +1 more source

Metastasizing esthesioneuroblastoma in a dog [PDF]

open access: yes, 2014
A 7-year-old Afghan hound presented with a history of disorientation, loss of vision, and seizures. Magnetic resonance imaging helped identify a mass at the level of the main olfactory bulb that compressed and displaced adjacent tissues in the cribriform
Herden, Christiane   +3 more
core   +1 more source

Can a penalized-likelihood estimation algorithm be used to reduce the injected dose or the acquisition time in 68Ga-DOTATATE PET/CT studies?

open access: yesEJNMMI Physics, 2021
Background Image quality and quantitative accuracy of positron emission tomography (PET) depend on several factors such as uptake time, scanner characteristics and image reconstruction methods. Ordered subset expectation maximization (OSEM) is considered
Alexandre Chicheportiche   +7 more
doaj   +1 more source

Neuroendocrine tumor theranostics

open access: yesCancer Science, 2022
AbstractTheranostics is a term coined by combining the words “therapeutics” and “diagnostics,” referring to single chemical entities developed to deliver therapy and diagnosis simultaneously. Neuroendocrine tumors are rare cancers that occur in various organs of the body, and they express neuroendocrine factors such as chromogranin A and somatostatin ...
Yasushi Ichikawa   +5 more
openaire   +2 more sources

Therapeutic sequences in patients with grade 1−2 neuroendocrine tumors (NET): an observational multicenter study from the ELIOS group [PDF]

open access: yes, 2019
Purpose: Many different treatments are suggested by guidelines to treat grade 1−2 (G1−G2) neuroendocrine tumors (NET). However, a precise therapeutic algorithm has not yet been established.
Badalamenti, G.   +17 more
core   +1 more source

Vandetanib induces a marked anti-tumor effect and amelioration of ectopic Cushing’s syndrome in a medullary thyroid carcinoma patient

open access: yesEndocrinology, Diabetes & Metabolism Case Reports, 2016
A 55-year-old woman diagnosed with sporadic MTC underwent total thyroidectomy 20 years ago. After the first surgery, elevated calcitonin levels in parallel with local disease persistence were noted and therefore she underwent repeated neck dissections ...
Hashem Bseiso   +3 more
doaj   +1 more source

Renal neuroendocrine tumors

open access: yesIndian Journal of Urology, 2009
Neuroendocrine tumors (NETs) are uncommon tumors that exhibit a wide range of neuroendocrine differentiation and biological behavior. Primary NETs of the kidney, including carcinoid tumor, small cell carcinoma (SCC), and large cell neuroendocrine carcinoma (LCNEC) are exceedingly rare.The clinicopathologic features of renal NETs diagnosed at a single ...
Brian R Lane, George Jour, Ming Zhou
openaire   +3 more sources

Somatostatin Analogues in the Treatment of Neuroendocrine Tumors: Past, Present and Future [PDF]

open access: yes, 2019
In recent decades, the incidence of neuroendocrine tumors (NETs) has steadily increased. Due to the slow-growing nature of these tumors and the lack of early symptoms, most cases are diagnosed at advanced stages, when curative treatment options are no ...
Amthauer, Holger   +8 more
core   +1 more source

Molecular pathogenesis and targeted therapy of sporadic pancreatic neuroendocrine tumors [PDF]

open access: yes, 2015
Over the past few years, knowledge regarding the molecular pathology of sporadic pancreatic neuroendocrine tumors (PNETs) has increased substantially, and a number of targeted agents have been tested in clinical trials in this tumor type.
Ahn   +64 more
core   +1 more source

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