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gastric neuroendocrine

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https://www.readbyqxmd.com/read/29305822/large-cell-neuroendocrine-carcinoma-arising-from-a-gastritis-cystica-polyposa
#1
Ryusaku Kusunoki, Hirofumi Fujishiro, Yuji Onoda, Shinsuke Suemitsu, Aya Fujiwara, Kousuke Tsukano, Satoshi Kotani, Daisuke Kuroki, Sayaka Ogawa, Satoshi Yamanouchi, Masahito Aimi, Satoko Ito, Youichi Miyaoka, Tatsuya Miyake, Naruaki Kohge, Tomonori Imaoka, Michio Takamura, Hideyuki Ohnuma, Shunji Ishihara, Yoshikazu Kinoshita
Gastritis cystica polyposa is a polypoid lesion that arises from the gastric mucosa at the gastrojejunal anastomotic site and is characterized by cystic dilation of the gastric glands. A 78-year-old man who underwent distal gastrectomy for a gastric ulcer with Billroth II reconstruction approximately 40 years previously, exhibited a gastritis cystica polyposa at the anastomotic site. Ulceration was observed on an annual endoscopic examination. Endoscopic ultrasonography revealed a submucosal hypoechoic mass with multiple cystic lesions...
January 5, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29282387/gastric-adenocarcinoma-with-dual-differentiation-toward-neuroendocrine-and-%C3%AE-fetoprotein-producing-features-report-of-2-cases
#2
Shun Iida, Shinichi Ban, Keizo Kato, Shinji Endo, Ryota Matsuo, Kosuke Hirano, Takashi Okuyama, Yukinori Yamagata, Yoshihiko Ueda
Some gastric carcinomas show composite features of neuroendocrine carcinoma (NEC) and α-fetoprotein (AFP)-producing carcinoma, which are very rare; only a few cases have been reported to date. We reviewed an additional 2 such cases of gastric carcinoma, which were both advanced aggressive tumors showing regional lymph node metastasis and distant metastasis. Both cases were accompanied by ordinary adenocarcinoma forms, implying that they had preceded the NEC and AFP-producing carcinoma components. A distinctive feature was the finding suggestive of dual differentiation of tumor cells to neuroendocrine and AFP-producing phenotypes, which was identified even in the metastatic tumor in the regional lymph node...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29260133/clinicopathological-features-of-gastroenteropancreatic-neuroendocrine-tumors-a-retrospective-evaluation-of-42-cases
#3
Kenan Büyükaşık, Aziz Arı, Cihad Tatar, Bülent Akçe, Mert Mahsuni Sevinç, Serkan Sarı, Esra Paşaoğlu, Hasan Bektaş
Objective: Neuroendocrine tumors arise from neuroendocrine cells in any part of the body; approximately two thirds of these tumors are located in the gastrointestinal tract and pancreas. Although gastroenteropancreatic neuroendocrine tumors are known as rare neoplasms, their prevalence has recently increased due to advanced diagnostic methods and increased awareness of the disorder. In the present study, we aimed to review patients who were treated and followed up for gastroenteropancreatic neuroendocrine tumors at our clinic in terms of clinical picture, pathological findings, and prognosis...
2017: Turkish journal of surgery
https://www.readbyqxmd.com/read/29244230/an-extremely-rare-case-of-epstein-barr-virus-associated-gastric-carcinoma-with-differentiation-to-neuroendocrine-carcinoma
#4
Ai Shimizu, Toshiyuki Takahashi, Ryoji Kushima, Kazuhiro Sentani, Wataru Yasui, Yoshihiro Matsuno
Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVGC) is defined as a neoplasm comprising monoclonal proliferation of EBV-infected gastric epithelial cells. Although the typical histology is gastric carcinoma with lymphoid stroma (GCLS), the histologic features of the tumor vary. We report herein the case of a 78-year-old man with multiple simultaneous EBVGCs revealing different histopathologic morphologies; one was mixed adenoneuroendocrine carcinoma (MANEC), and the other was GCLS. Both tumor types exhibited positive results for EBV in situ hybridization...
December 15, 2017: Pathology International
https://www.readbyqxmd.com/read/29233547/the-developing-spectrum-of-gastric-type-cervical-glandular-lesions
#5
REVIEW
Karen L Talia, W Glenn McCluggage
Adenocarcinoma of the cervix is less common than squamous cell carcinoma, although its relative prevalence is increasing. Oncogenic (high-risk) human papillomavirus (HPV) infection is implicated in the development of approximately 90% of all cervical adenocarcinomas. Of the remaining non-HPV associated tumours, the most frequent is gastric-type adenocarcinoma (GAS), which is recognised by the World Health Organization as a form of mucinous adenocarcinoma of the cervix. Minimal deviation adenocarcinoma (MDA) of mucinous type (adenoma malignum) is considered an extremely well differentiated variant of GAS and is encompassed within the category of GAS...
December 9, 2017: Pathology
https://www.readbyqxmd.com/read/29231547/-effects-of-electroacupuncture-at-acupoints-with-different-nerve-segments-on-gastric-emptying-in-ot-gene-knockout-mice
#6
Weiwei Liu, Chao Zhang, Yukai Zhang, Jiongjie Ning, Jiangshan Li
OBJECTIVE: To observe the effects of electroacupuncture (EA) at acupoints with different nerve segments on gastric emptying in oxytocin (OT) gene knockout mice, and to explore the role of paraventricular nucleus OT in EA regulating gastric function. METHODS: Twenty OT knockout mice and twenty wild-type mice (8-9 weeks old, male and female in half) were divided into a control group, a Zusanli (ST 36) group, a Neiguan (PC 6) group and a Weishu (BL 21) group randomly, 5 mice in each group...
July 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29218566/gastric-neuroendocrine-tumor-arising-from-heterotopic-pancreas
#7
Takehiro Tanaka, Rika Omote, Noriko Okazaki, Hiroyuki Yanai, Tadashi Yoshino
There are few English reports on secondary tumors from heterotopic pancreas. Here, we describe a case of gastric neuroendocrine tumor (NET) arising from heterotopic pancreas. A 72-year-old woman underwent esophagogastroduodenoscopy as part of a general health check-up. An endoscopic examination revealed a submucosal tumor on the greater curvature of the gastric body. Laparoscopic and endoscopic cooperative surgery was performed. Histological diagnosis concluded that it was a Grade 1 NET arising from heterotopic pancreas...
December 7, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29207718/an-alpha-fetoprotein-producing-gastric-tumor-with-yolk-sac-hepatoid-and-papillary-adenocarcinoma-components
#8
Archana Lakshmanan, Ann Kurian, Annapurneswari Subramanyan, Ayyappan Srinivasan
Alpha Fetoprotein (AFP) producing gastric carcinomas are very rare and have unique clinicopathological features and an extremely poor prognosis. Here, we report a case of AFP producing gastric carcinoma with three distinct histomorphologic patterns such as yolk sac like, hepatoid, tubular and papillary adenocarcinoma components. The uniqueness of this case is absence of metastases and associated findings such as fundic gland polyposis with varying degrees of dysplasia, gastric and duodenal well differentiated neuroendocrine tumour and rectal ganglioneuroma...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29204428/case-of-gastric-neuroendocrine-carcinoma-showing-an-interesting-tumorigenic-pathway
#9
Noriyuki Uesugi, Ryo Sugimoto, Makoto Eizuka, Yasuko Fujita, Mitsumasa Osakabe, Keisuke Koeda, Takashi Kosaka, Shunichi Yanai, Kazuyuki Ishida, Akira Sasaki, Takayuki Matsumoto, Tamotsu Sugai
Here, we report a case of gastric neuroendocrine carcinoma showing an interesting tumorigenic pathway. A 57-year-old Japanese woman presented with epigastric tenderness, and distal gastrectomy was performed. In the surgical specimen, histologically, the tumor tissue was composed of three subtypes of tumor components showing different histological architecture and cellular atypia, diagnosed as neuroendocrine tumor (NET) G2, NET G3, and neuroendocrine carcinoma (NEC) components. Immunohistochemically, the Ki-67-positive rates of NET G2, NET G3, and NEC components were 6...
November 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/29201871/calcitonin-gene-related-peptide-neuroendocrine-communication-between-the-pancreas-gut-and-brain-in-regulation-of-blood-glucose
#10
Sayali A Pendharkar, Monika Walia, Marie Drury, Maxim S Petrov
Background: Calcitonin gene-related peptide (CGRP), a ubiquitous neuropeptide, plays a diverse and intricate role in chronic low-grade inflammation, including conditions such as obesity, type 2 diabetes, and diabetes of the exocrine pancreas. Diabetes of exocrine pancreas is characterised by chronic hyperglycemia and is associated with persistent low-grade inflammation and altered secretion of certain pancreatic and gut hormones. While CGRP may regulate glucose homeostasis and the secretion of pancreatic and gut hormones, its role in chronic hyperglycemia after acute pancreatitis (CHAP) is not known...
November 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29190137/high-risk-gastric-pathology-and-prevalent-autoimmune-diseases-in-patients-with-pernicious-anemia
#11
Jing W Hughes, Brian D Muegge, Garry S Tobin, Marina Litvin, Lulu Sun, Jose B Saenz, C Prakash Gyawali, Janet B McGill
OBJECTIVE: Pernicious anemia (PA) develops from atrophic gastritis due to autoimmune destruction of parietal cells and results in achlorhydria, vitamin B12 and iron deficiencies, anemia, neurologic deficits, and premalignant and malignant stomach lesions. We report the presentation, diagnosis and gastric complications of PA in patients from an endocrinology practice. METHODS: Thirty-four patients (31 female, 3 male) with PA who underwent esophagogastroduodenoscopy (EGD) or gastrectomy were identified...
November 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29188801/pharmacokinetic-and-pharmacodynamic-evidence-for-developing-an-oral-formulation-of-octreotide-against-gastric-mucosal-injury
#12
Xi-Nuo Li, Tai Rao, Yang-Fan Xu, Kang-Rui Hu, Zhang-Pei Zhu, Hao-Feng Li, Dian Kang, Yu-Hao Shao, Bo-Yu Shen, Xiao-Xi Yin, Lin Xie, Guang-Ji Wang, Yan Liang
Among the somatostatin analogues, octreotide (OCT) is the most commonly used in clinic via intravenous or subcutaneous injection to treat various diseases caused by increased secretion of growth hormone, gastrin or insulin. In order to assesse the feasibility of developing oral formulations of OCT, we conducted systematical pharmacokinetic and pharmacodynamic analyses of OCT in several animal models. The pharmacokinetic studies in rats showed that intragastric administration of OCT had extremely low bioavailability (<0...
November 30, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29164159/gastric-pouch-mixed-adenoneuroendocrine-carcinoma-with-a-mixed-adenocarcinoma-component-after-roux-en-y-gastric-bypass
#13
Ricardo G Pastorello, Mariana Petaccia de Macedo, Wilson Luiz da Costa Junior, Maria Dirlei F S Begnami
The Roux-en-Y gastric bypass is one of the most common procedures currently performed for surgical treatment of patients with severe obesity. Gastric cancer after bariatric surgery is not common, with most of them arising in the excluded stomach. Gastric mixed adenoneuroendocrine carcinomas are a rare type of stomach malignancy, composed of both adenocarcinoma and neuroendocrine tumor-cell components, with the latter comprising at least 30% of the whole neoplasm. In this article, we report a unique case of a mixed adenoneuroendocrine carcinoma with a mixed adenocarcinoma (tubular and poorly cohesive) component arising in the gastric pouch of a patient who underwent previous Roux-en-Y gastric bypass for glycemic control...
October 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/29155521/gastric-adenocarcinoma-with-neuroendocrine-differentiation-clinicopathological-features-and-efficacy-of-modified-dcf-chemotherapy
#14
Yakup Bozkaya, Nuriye Ozdemir, Aysel Colak, Nurullah Zengin
PURPOSE: The aim of this study was to investigate the clinicopathological characteristics of patients with gastric carcinoma with neuroendocrine differentiation (NEDGC) and the efficacy of the modified DCF (mDCF) chemotherapy regimen. METHODS: Patients with NEDGC and non-NEDGC (pure adenocarcinoma) were evaluated comparatively in terms of pathological parameters, clinical parameters and treatment efficacy. Patients received treatment with mDCF (docetaxel, cisplatin and 5-fluorouracil)...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29151523/neuroendocrine-carcinoma-of-the-stomach-a-response-to-combination-chemotherapy-consisting-of-ramucirumab-plus-paclitaxel
#15
Yuki Matsubara, Takayuki Ando, Ayumu Hosokawa, Hiroshi Mihara, Hiroaki Takagi, Naokatsu Nakata, Hiroki Yoshita, Sohachi Nanjo, Shinya Kajiura, Haruka Fujinami, Toshiro Sugiyama
Extrapulmonary neuroendocrine carcinoma (NEC) is a rare disease, and there is no standard chemotherapy. A 73-year-old man was diagnosed with advanced gastric NEC. He received chemotherapy of irinotecan plus cisplatin, and amrubicin monotherapy. After failure of second-line chemotherapy, he received ramucirumab plus paclitaxel; this treatment was chosen because vascular endothelial growth factor 2 was strongly expressed in the tumor endothelial cells. After two cycles, his NEC had markedly reduced in size, and he continued with this treatment for over eight months...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29146893/von-hippel-lindau-disease-with-multi-organ-involvement-a-case-report-and-8-year-clinical-course-with-follow-up
#16
Ali Yaghobi Joybari, Payam Azadeh
BACKGROUND Von Hippel-Lindau (VHL) disease is a rare autosomal dominant syndrome manifested by a spectrum of benign and malignant tumors.  CASE REPORT The patient presented here was a 31-year-old female with unremarkable family history who presented initially complaining of intermittent abdominal pain. Abdominal CT scan revealed an inhomogeneous solid mass (13×9×7 cm) originating from the tail of the pancreas with splenic and gastric invasion as well as several pancreatic cysts. A nucleotide scan showed left adrenal involvement...
November 17, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29137016/binding-pancreaticogastrostomy-anastomosis-in-central-pancreatectomy-a-single-center-experience
#17
Pengcheng Kang, Zhidong Wang, Kaiming Leng, Xiangyu Zhong, Hao Wang, Ming Wan, Sheng Tai, Yunfu Cui
A growing number of central pancreatectomies are performed. However, reconstruction of pancreaticoenteral digestive continuity after central pancreatectomy remains debated. This study evaluates the short-term outcomes of binding pancreaticogastrostomy anastomosis in central pancreatectomy.We have reviewed our experience with 52 patients who underwent binding pancreaticogastrostomy following central pancreatectomy from February 2009 to March 2015. Indication includes 6 noninvasive intraductal papillary mucinous neoplasms, 11 neuroendocrine tumors, 12 solid pseudopapillary tumor, 9 serous cystadenoma, 6 mucinous cystadenoma, and 8 focal pancreatic traumas...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136687/-gastric-glomus-tumors-expressing-synaptophysin-clinicopathologic-and-immunohistochemical-analyses
#18
J C Wang, X F Jin, S X Weng, C Xu, M F Gan
Objective: To investigate the clincopathologic and immunohistochemical features of gastric glomus tumors and their differences from gastric neuroendocrine neoplasms. Methods: Six cases of gastric glomus tumors, 8 cases of glomus tumors in other sites and 7 cases of gastric neuroendocrine neoplasms were collected from the Department of Pathology, Taizhou Hospital. The clinicopathological and immunohistochemical characteristics of these tumors were analyzed retrospectively. Results: The gastric glomus tumors were located in the muscularis propria of the antrum and most cases strongly expressed synaptophysin (5/6)...
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29136407/phospholipase-d-inhibitors-reduce-human-prostate-cancer-cell-proliferation-and-colony-formation
#19
Amanda R Noble, Norman J Maitland, Daniel M Berney, Martin G Rumsby
BACKGROUND: Phospholipases D1 and D2 (PLD1/2) hydrolyse cell membrane glycerophospholipids to generate phosphatidic acid, a signalling lipid, which regulates cell growth and cancer progression through effects on mTOR and PKB/Akt. PLD expression and/or activity is raised in breast, colorectal, gastric, kidney and thyroid carcinomas but its role in prostate cancer (PCa), the major cancer of men in the western world, is unclear. METHODS: PLD1 protein expression in cultured PNT2C2, PNT1A, P4E6, LNCaP, PC3, PC3M, VCaP, 22RV1 cell lines and patient-derived PCa cells was analysed by western blotting...
November 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29108282/igf-iec-expression-is-increased-in-secondary-compared-to-primary-foci-in-neuroendocrine-neoplasms
#20
Krystallenia I Alexandraki, Anastassios Philippou, Georgios Boutzios, Irini Theohari, Michael Koutsilieris, Ioanna Kassiani Delladetsima, Gregory A Kaltsas
Different Insulin-like growth factor-I (IGF-I) mRNA transcripts are produced by alternative splicing and particularly the IGF-IEc isoform has been implicated in the development and/or progression of various types of cancer. In the present study, we examined the potential role of IGF-IEc expression as a new immunohistochemical marker of aggressiveness in neuroendocrine neoplasms (NENs). We utilized immunohistochemical analysis in tissue specimens of 47 patients with NENs, to evaluate the expression of IGF-IEc (%) and Ki-67 proliferation index (%)...
October 3, 2017: Oncotarget
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