Giant Primary Neuroendocrine Neoplasms of the Liver: Report of 2 Cases With Molecular Characterization

2019 ◽  
Vol 27 (8) ◽  
pp. 893-899
Author(s):  
Laura G. Pastrián ◽  
Ignacio Ruz-Caracuel ◽  
Raul S. Gonzalez
Keyword(s):  
World Health Organization ◽  
Neuroendocrine Tumor ◽  
Large Cell ◽  
The Other ◽  
World Health ◽  
Neuroendocrine Neoplasms ◽  
Molecular Testing ◽  
Well Differentiated ◽  
Grade 3 ◽  
Health Organization

Primary neuroendocrine neoplasms of the liver have occasionally been reported in the liver, though many reports do not convincingly exclude metastases. In this article, we report 2 “giant” hepatic neuroendocrine lesions without evidence of a primary elsewhere after clinical workup. One occurred in a 21-year-old male; the lesion was a large cell neuroendocrine carcinoma measuring 24 cm. The patient died of disease in 10 months. The other occurred in a 25-year-old patient, was 18 cm wide, and was diagnosed as a well-differentiated neuroendocrine tumor, World Health Organization grade 3. The patient died of disease after 30 months. Molecular testing demonstrated only the presence of TP53 mutations in common. These cases expand our knowledge of seemingly primary neuroendocrine neoplasms of the liver, in particular, giant cases measuring more than 8 cm. Guidelines for clinical workup and therapy for these lesions remain unclear, but future thorough workup of such cases is necessary for specific characterization.

Gastroenteropancreatic neuroendocrine tumors: clinicopathological evaluation at Shifa International Hospital, Islamabad. A single centre experience

2020 ◽  
pp. 1-14
Author(s):  
Nadira Mamoon ◽  
Hania Naveed ◽  
Mariam Abid ◽  
Humaira Nasir ◽  
Imran Nazir Ahmad ◽  
...  
Keyword(s):  
Neuroendocrine Tumor ◽  
Neuroendocrine Tumors ◽  
Neuroendocrine Carcinoma ◽  
World Health ◽  
Gastroenteropancreatic Neuroendocrine Tumors ◽  
Single Centre Experience ◽  
Who 2010 Classification ◽  
Well Differentiated ◽  
Grade 3 ◽  
Health Organization

Abstract Objective: Clinicopathological features of gastroenteropancreatic neuroendocrine tumors (GEP-NETs) have rarely been studied in the Pakistani population. We investigated the clinical characteristics of these tumors according to the updated World Health Organization (WHO) 2010 classification. Methods: The data of Shifa International Hospital, Islamabad was retrospectively analysed for pathologically confirmed GEP-NETs from January 2013 to March 2018. Results: One hundred and eighteen patients (mean age, 52.2 years; male, 55.1%) were identified. 83.1% of the patients were symptomatic including5.1% functional tumors. Pancreas (28%) was the most frequent primary site noted. The most common histologic type was well differentiated neuroendocrine tumor (WDNET) in 81.4% followed by neuroendocrine carcinoma (NEC) in 16.1%. 45.8% cases of WDNET were grade 1, 27.1% were grade 2, and 8.5% were grade 3.15.3% had distant metastasis at the time of diagnosis with liver (77.7%) as the most common metastatic site. Synaptophysin positivity was seen in 96.8% of grade 1 & grade 2 WDNET, 100% of grade 3 WDNET and 92.3% of NEC and chromogranin was positive in 94.2% of grade 1 &grade 2 WDNET, 83.3% of grade 3 WDNET and 45.4% of NEC. Conclusion: GEP-NETs showed a wide clinicopathological spectrum. Pancreas is the most site of involvement by the GEP-NET however grade 3 WDNET had a predilection for the colon. Small cell carcinomas were commonly observed in esophagus. Keywords: Gastroenteropancreatic neuroendocrine tu­mor, well differentiated neuroendocrine tumor, neuroendocrine carcinoma. Continuous...

scholarly journals Increased neutrophil–lymphocyte ratio predicts recurrence in patients with well-differentiated pancreatic neuroendocrine neoplasm based on the 2017 World Health Organization classification

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Takayuki Miura ◽  
Hideo Ohtsuka ◽  
Takeshi Aoki ◽  
Shuichi Aoki ◽  
Tatsuo Hata ◽  
...  
Keyword(s):  
World Health Organization ◽  
World Health ◽  
Neuroendocrine Neoplasm ◽  
Neuroendocrine Neoplasms ◽  
World Health Organization Classification ◽  
Neutrophil Lymphocyte Ratio ◽  
Lymphocyte Ratio ◽  
Pancreatic Neuroendocrine Neoplasm ◽  
Well Differentiated ◽  
Health Organization

Abstract Background The prognostic values of inflammation-based markers in well-differentiated pancreatic neuroendocrine neoplasms, diagnosed according to the new 2017 World Health Organization classification, have remained unclear. Therefore, we assessed the ability to predict the recurrence of such markers after curative resection in patients with these neoplasms. Methods Circulating/systemic neutrophil–lymphocyte, monocyte–lymphocyte, platelet–lymphocyte, and platelet–white cell ratios were evaluated in 120 patients who underwent curative resection for well-differentiated pancreatic neuroendocrine neoplasms without synchronous distant metastasis between 2001 and 2018. Recurrence-free-survival and overall survival were compared using Kaplan–Meier analysis and log-rank tests. Univariate or multivariate analyses, using a Cox proportional hazards model, were used to calculate hazard ratios with 95% confidence intervals. Results Univariate analysis demonstrated that preoperative neutrophil–lymphocyte ratio, tumor size, European Neuroendocrine Tumor Society TMN classification, 2017 World Health Organization classification, and venous invasion were associated with recurrence. The optimal preoperative neutrophil–lymphocyte ratio cut-off value was 2.62, based on receiver operating characteristic curve analysis. In multivariate analysis, a higher preoperative neutrophil–lymphocyte ratio (HR = 3.49 95% CI 1.05–11.7; P = 0.042) and 2017 World Health Organization classification (HR = 8.81, 95% CI 1.46–168.2; P = 0.015) were independent recurrence predictors. Conclusions The circulating/systemic neutrophil–lymphocyte ratio is a useful and convenient preoperative prognostic marker of recurrence in patients with well-differentiated pancreatic neuroendocrine neoplasm based on the 2017 World Health Organization classification.

scholarly journals Gastric Neuroendocrine Neoplasm : WHO Classification 2019

2020 ◽  
Vol 1 (2) ◽  
pp. 46-62
Author(s):  
Eka Putra Pratama ◽  
Suly Auline Rusminan
Keyword(s):  
World Health Organization ◽  
Mixed Type ◽  
Who Classification ◽  
World Health ◽  
Small Cells ◽  
Neuroendocrine Neoplasm ◽  
Net G3 ◽  
Well Differentiated ◽  
Grade 3 ◽  
Health Organization

A B S T R A C TNeuroendocrine neoplasm (NEN) of gastric is a term that includes all tumour types withneuroendocrine differentiation of gastric, well differentiated or poorly differentiatedtumour. NEN is a new term in 2019 World Health Organization (WHO) classification ofdigestive system tumours. In WHO 2019 had many updates, one of them isneuroendocrine tumours (NET) grade 3 have been included in tumour category of welldifferentiated tumour or NET. Previously, NET G3 in WHO 2010 are included as poorlydifferentiated tumour or neuroendocrine carcinoma (NEC). This neoplasm is geneticallywell differentiated and because of that, WHO 2019 classification included them as a welldifferentiated tumour. For NEC, WHO 2019 subdivided them as NEC with small cells(SCNEC) and NEC with large cells (LCNEC). In WHO 2010, mixed type neuroendocrineneoplasms with other components of carcinoma are called mixed adenoneuroendocrinecarcinoma (MANEC). But, not all of non-neuroendocrine components areadenocarcinoma and it is possible that one of the components in not carcinoma. Becauseof that, in WHO 2019 the term has been changed to mixed neuroendocrine-nonneuroendocrine neoplasm (MiNEN).

scholarly journals What is New in 2019 World Health Organization (WHO) Classification of Tumors of the Digestive System: Review of Selected Updates on Neuroendocrine Neoplasms, Appendiceal Tumors, and Molecular Testing

2020 ◽  
Author(s):  
Naziheh Assarzadegan ◽  
Elizabeth Montgomery
Keyword(s):  
World Health Organization ◽  
Digestive System ◽  
English Literature ◽  
World Health ◽  
Response To Treatment ◽  
Neuroendocrine Neoplasms ◽  
Molecular Testing ◽  
Classification Of Tumors ◽  
Health Organization

Context.— The 5th edition of the World Health Organization classification of digestive system tumors discusses several advancements and developments in understanding the etiology, pathogenesis, and diagnosis of several digestive tract tumors. Objective.— To provide a summary of the updates with a focus on neuroendocrine neoplasms, appendiceal tumors, and the molecular advances in tumors of the digestive system. Data Sources.— English literature and personal experiences. Conclusions.— Some of the particularly important updates in the 5th edition are the alterations made in the classification of neuroendocrine neoplasms, understanding of pathogenesis of appendiceal tumors and their precursor lesions, and the expanded role of molecular pathology in establishing an accurate diagnosis or predicting prognosis and response to treatment.

scholarly journals Co-existence of gastric adenocarcinoma and neuroendocrine carcinoma: a rare entity

2017 ◽  
Vol 7 (2) ◽  
pp. 1221-1223 ◽  
Author(s):  
Nirajan Mainali ◽  
Niraj Nepal ◽  
Prabesh Kumar Choudhary ◽  
Amrita Sinha ◽  
Saroj Rajbanshi ◽  
...  
Keyword(s):  
Neuroendocrine Carcinoma ◽  
Partial Gastrectomy ◽  
Endoscopic Biopsy ◽  
World Health ◽  
Neuroendocrine Neoplasms ◽  
World Health Organization Classification ◽  
Well Differentiated ◽  
Health Organization ◽  
Histopathology Examination

A mixed adenoneuroendocrine carcinoma is a tumor composed of both adenocarcinoma and neuroendocrine carcinoma components, with each comprising  at least one-third of the lesion, as defined by the World Health Organization classification of neuroendocrine neoplasms in 2010.. A 67-years-old male was admitted to the hospital with symptoms suggesting gastric cancer. Histopathology examination from endoscopic biopsy revealed adenocarcinoma. Later partial gastrectomy specimen examination the lesion show presence of well differentiated adenocarcinoma along with neuro endocrine carcinoma.

Personality as a Determinant of the Form of Alcoholism

1968 ◽  
Vol 114 (511) ◽  
pp. 761-766 ◽  
Author(s):  
H. J. Walton
Keyword(s):  
World Health Organization ◽  
Alcoholics Anonymous ◽  
Alcohol Addiction ◽  
The Other ◽  
World Health ◽  
Health Organization

Two common forms of alcoholism are described (World Health Organization, 1952; Kessel and Walton, 1965). The first is well recognized clinically, and has often been portrayed accurately by novelists and dramatists. So successfully has this more conspicuous form of alcohol addiction been publicized by Alcoholics Anonymous that Jellinek (1960) cautioned medical readers against overemphasis on it to the exclusion of the other clinical variety of the illness.

scholarly journals Cybersecurity and Countermeasures at the Time of Pandemic

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Rabie A. Ramadan ◽  
Bassam W. Aboshosha ◽  
Jalawi Sulaiman Alshudukhi ◽  
Abdullah J. Alzahrani ◽  
Ayman El-Sayed ◽  
...  
Keyword(s):  
World Health Organization ◽  
Hand Washing ◽  
The Other ◽  
World Health ◽  
Research Articles ◽  
Remote Work ◽  
Related Research ◽  
News Sources ◽  
The World ◽  
Health Organization

With the emergence of one of this century’s deadliest pandemics, coronavirus disease (COVID-19) has an enormous effect globally with a quick spread worldwide. This made the World Health Organization announce it as a pandemic. COVID-19 has pushed countries to follow new behaviors such as social distancing, hand washing, and remote work and to shut down organizations, businesses, and airports. At the same time, white hats are doing their best to accommodate the pandemic. However, while white hats are protecting people, black hats are taking advantage of the situation, which creates a cybersecurity pandemic on the other hand. This paper discusses the cybersecurity issues at this period due to finding information or finding another related research that had not been discussed before. This paper presents the cybersecurity attacks during the COVID-19 epidemic time. A lot of information has been collected from the World Health Organization (WHO), trusted organizations, news sources, official governmental reports, and available research articles. This paper then classifies the cybersecurity attacks and threats at the period of COVID-19 and provides recommendations and countermeasures for each type. This paper surveys the cybersecurity attacks and their countermeasures and reports the ongoing cybersecurity attacks and threats at this period of time. Moreover, it is also a step towards analyzing the efficiency of the country’s infrastructure as well as hackers and criminals’ social behavior at the time of the pandemic.

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