نتایج جستجو برای: primary gastric adenocarcinoma

تعداد نتایج: 790721  

Journal: :International journal of clinical and experimental pathology 2015
Ikuo Matsuda Kazuomi Kan Sadayuki Doi Yoshiyuki Motoki Masayuki Onodera Seiichi Hirota

Epstein-Barr virus (EBV)-associated gastric adenocarcinoma is a histological subtype of gastric adenocarcinoma, in which all of the carcinoma cells are basically positive for EBV-encoded small RNA (EBER) by in situ hybridization. Although its typical histology has some overlap with gastric carcinoma with lymphoid stroma, absence of massive lymphoid infiltrate is sometimes observed either in who...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2014
S T Leung C Y Chu Billy M H Lai Florence M F Cheung Jennifer L S Khoo

Metastases to the scrotal wall are very rare, and being the initial manifestation of occult primary tumours is even rarer. We report on a patient presenting with painless scrotal swelling, attributed to a solid extra-testicular mass found on ultrasonography. Subsequent investigations and surgical exploration revealed it to be a scrotal wall metastasis from an occult gastric primary. To our know...

2011
Young S. Oh Benson T. Massey

Intestinal type gastric adenocarcinoma is felt to develop over a protracted time period through a series of defined steps. Several potential risk factors for the development of gastric cancer have been identified, including a family history of gastric cancer and Helicobacter pylori infection. We present the case of a patient with neither risk factor who progressed in a 14 month time frame from ...

Journal: :International journal of clinical and experimental pathology 2012
Yukio Fujiyoshi Shuying Jiang Xia Feng

We report a case of gastric intramucosal adenocarcinoma giving rise to a large metastatic intraabdominal mass with focal choriocarcinomatous differentiation. The main histological picture of the surgically resected abdominal tumor was well differentiated adenocarcinoma with focal choriocarcinomatous differentiation. Serum hCGβ level showed 710mIU/dl postoperatively, and the gastric lesion featu...

2013
Kristine Misund Linn-Karina Myrland Selvik Shalini Rao Kristin Nørsett Ingunn Bakke Arne K. Sandvik Astrid Lægreid Torunn Bruland Wenche S. Prestvik Liv Thommesen

The peptide hormone gastrin is known to play a role in differentiation, growth and apoptosis of cells in the gastric mucosa. In this study we demonstrate that gastrin induces Nuclear Receptor 4A2 (NR4A2) expression in the adenocarcinoma cell lines AR42J and AGS-GR, which both possess the gastrin/CCK2 receptor. In vivo, NR4A2 is strongly expressed in the gastrin responsive neuroendocrine ECL cel...

Journal: :The Turkish journal of pediatrics 2014
Suna Emir Neslihan Karakurt Esra Karakuş Emrah Şenel Ceyda Kırsaçlıoğlu Hacı Ahmet Demir Diclehan Orhan

Gastric adenocarcinoma is a rare entity in the pediatric population. Gastric hepatoid adenocarcinoma with elevated serum alpha-fetoprotein (AFP) is seen extremely rarely in children. A 12-year-old boy was admitted to the hospital with complaint of abdominal pain. X-ray revealed free air density below the diaphragm. Emergent laparotomy showed perforated stomach. Four weeks after the operation, h...

2015
Keisuke Taniuchi Mitsuo Okada Hiroshi Sakaeda

Gastric hyperplastic polyps are generally considered benign lesions, although rare cases of adenocarcinoma have been reported. Two cases of intramucosal adenocarcinoma originating from gastric hyperplastic polyps that were successfully removed by endoscopic mucosal resection or endoscopic submucosal dissection are reported. On pathological examination, adenocarcinoma limited to the hyperplastic...

2017
Yuan Gao Su Li Dazhi Xu Shangxiang Chen Yuchen Cai Wenqi Jiang Xinke Zhang Jin Sun Kefeng Wang Boyang Chang Fenghua Wang Minghuang Hong

BACKGROUND Anti-programmed death-1/programmed death-ligand 1 (PD-1/PD-L1) immunotherapy has been proved to be effective on gastric cancer in ongoing clinical trials. However, the value of PD-L1 in predicting responses of patients with gastric cancer to anti-PD-1/PD-L1 immunotherapy is controversial. Some studies suggested that intra- and inter-tumoral heterogeneity of PD-L1 expression might exp...

امامی رضوی, امیرنادر, صفائی جوان, راحله, طالب‌آبادی, نازنین, عبدالهی, علیرضا, محمدپور, حدیث,

Background: As far as the role and amount of Transferrin receptor 2 (TFR2), which is the transferrin receptor gene, studies have been conducted, some of which confirming its relationship with gastric adenocarcinoma. The idea behind this study was to examine changes in the TFR2 gene expression in the tumor cells of gastric adenocarcinoma and comparing with gene expression in the normal tissue ad...

2010
Gil R Faria Catarina Eloy John R Preto Eduardo L Costa Teresa Almeida José Barbosa Maria Emília Paiva Joaquim Sousa-Rodrigues Amadeu Pimenta

INTRODUCTION Most gastric tumors are adenocarcinomas. Primary gastric adenosquamous carcinoma is a rare malignancy, mostly associated with Asian populations. It constitutes less than one percent of all gastric carcinomas and its clinical presentation is the same as adenocarcinoma. It occurs more frequently in the proximal stomach, usually presents with muscular layer invasion and tends to be fo...

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