keyword
MENU ▼
Read by QxMD icon Read
search

Tumors neuroendocrine

keyword
https://www.readbyqxmd.com/read/28435455/the-netpet-score-combining-fdg-and-somatostatin-receptor-imaging-for-optimal-management-of-patients-with-metastatic-well-differentiated-neuroendocrine-tumors
#1
EDITORIAL
Elif Hindié
Neuroendocrine tumors (NET) are often metastatic at the time of diagnosis. Metastatic well-differentiated (G1/G2) NET may display a wide range of behaviors, ranging from indolent to aggressive, even within apparently homogeneous categories. Thus, selecting the optimal treatment strategy is a challenging task. Somatostatin receptor imaging (SRI) is the standard molecular imaging technique for well-differentiated NET. When performed with (68)Ga-labeled somatostatin analogs (SRI-PET), it offers exquisite sensitivity for disease staging...
2017: Theranostics
https://www.readbyqxmd.com/read/28430639/should-surgery-be-conducted-for-small-nonfunctioning-pancreatic-neuroendocrine-tumors-a-systemic-review
#2
REVIEW
Jingfei Guo, Jianjun Zhao, Xinyu Bi, Zhiyu Li, Zhen Huang, Yefan Zhang, Jianqiang Cai, Hong Zhao
BACKGROUND: The incidence of nonfunctioning pancreatic neuroendocrine tumors smaller than 2cm has increased remarkably in the last two decades. Controversies exist regarding whether surgery should be conducted for this group of tumors. METHODS: MEDLINE, EMBASE and CENTRAL were search until 2017/01/17. Studies with comparative results between operation and observation group were included. Primary outcomes were overall survival and disease specific survival. Secondary outcomes were disease progression and surgical death and complications...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430347/hypopharyngeal-squamous-cell-carcinoma-and-laryngeal-neuroendocrine-carcinoma-colliding-in-the-aryepiglottic-fold-a-case-report
#3
Roberta Marangoni, Simone Mauramati, Giulia Bertino, Antonio Occhini, Marco Benazzo, Patrizia Morbini
PURPOSE: A collision tumor consists of 2 different histologically distinct and topographically independent tumors merging in the same mass. In the head and neck region they are rare, with only 4 cases reported in the larynx. CASE REPORT: A 60-year-old heavy smoker complained of a left submandibular lesion in October 2014. The lesion was excised and showed a poorly differentiated carcinoma, suggestive for adenocarcinoma. After a positron emission tomography-computed tomography scan showed increased metabolic activity in the left laterocervical region and right vocal cord, the patient underwent endoscopic biopsy of the lesion of the left piriform sinus, which was positive for moderately differentiated squamous cell carcinoma (SCC)...
April 14, 2017: Tumori
https://www.readbyqxmd.com/read/28429092/natural-history-of-men1-gep-net-single-center-experience-after-a-long-follow-up
#4
Francesco Giudici, Tiziana Cavalli, Francesca Giusti, Giorgio Gronchi, Giacomo Batignani, Francesco Tonelli, Maria Luisa Brandi
BACKGROUND: The multiple endocrine neoplasia type 1 syndrome (MEN1) natural history is poorly evaluated, and few single-institution experiences about hereditary gastroenteropancreatic neuroendocrine tumors (GEP-NET) are reported. Our purpose is to analyze the role of GEP-NET in MEN1-related death, as well as the behavior of these lesions during follow-up. METHODS: The study population consists of 77 patients diagnosed with MEN1 GEP-NET, regularly followed up since 1990...
April 20, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28428516/-long-term-survival-of-a-gastric-neuroendocrine-carcinoma-patient-with-extra-regional-lymph-node-metastases
#5
Yosuke Ozawa, Naokazu Chiba, Kosuke Hikita, Masaaki Okihara, Toru Sano, Koichi Tomita, Kiminori Takano, Shigeyuki Kawachi
A 56-year-old man with advanced gastric tumor in the pyloric antrum had multiple lymph node metastases(lymph nodes #5, 6, 8, and 13), as revealed by abdominal computed tomography(CT).The patient was diagnosed with coexisting clinical Stage III A gastric cancer(cT2[SS], cN2, cM0)with concomitant malignant lymphoma.Distal gastrectomy, D2 lymph node dissection, and resection of lymph node #13 were performed.Histopathological findings indicated that both the primary tumor and lymph node metastases were neuroendocrine carcinomas...
April 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28428192/long-term-efficacy-survival-and-safety-of-177lu-dota0-tyr3-octreotate-in-patients-with-gastroenteropancreatic-and-bronchial-neuroendocrine-tumors
#6
Tessa Brabander, Wouter A Van der Zwan, Jaap Jm Teunissen, Boen L R Kam, Richard A Feelders, Wouter W de Herder, Casper H J van Eijck, Gaston J H Franssen, Eric P Krenning, Dik J Kwekkeboom
Purpose<br /> Bronchial and gastroenteropancreatic neuroendocrine tumors (NETs) are slow-growing tumors, which frequently express somatostatin receptors on their cell membranes. These receptors are targets for therapy with Lutetium-177-labeled somatostatin analogs. We have treated over 1200 patients with peptide receptor radionuclide therapy (PRRT) with (177)Lu-DOTA(0),Tyr(3)]octreotate ((177)Lu-DOTATATE) since the year 2000 and present the results on efficacy, survival and toxicity of this therapy. <p>Patients and methods<br /> For safety analysis, 610 patients treated with a cumulative dose of at least 100 mCi (3...
April 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28428105/microcarcinoid-arising-in-patients-with-long-standing-ulcerative-colitis-histological-analysis
#7
Sachie Kanada, Akira Sugita, Tetuo Mikami, Kenichi Ohashi, Hiroyuki Hayashi
Some case reports of neuroendocrine tumors (NETs) and neuroendocrine carcinoma (NEC) associated with ulcerative colitis (UC) have been published. Most NET cases are small lesions corresponding to microcarcinoids (MCs). However, published case reports have presented findings of MCs as single-case reports. Thus, the frequency of MCs is still unclear. In this study, we described the clinical and morphological features of 14 cases of UC-associated MC and estimated the frequency of MC. Consecutive patients with UC who underwent complete removal of the large intestine were assessed, and 135 patients were selected...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28427194/alternative-rna-splicing-of-the-meaf6-gene-facilitates-neuroendocrine-prostate-cancer-progression
#8
Ahn R Lee, Yinan Li, Ning Xie, Martin E Gleave, Michael E Cox, Colin C Collins, Xuesen Dong
Although potent androgen receptor pathway inhibitors (ARPI) improve overall survival of metastatic prostate cancer patients, treatment-induced neuroendocrine prostate cancer (t-NEPC) as a consequence of the selection pressures of ARPI is becoming a more common clinical issue. Improved understanding of the molecular biology of t-NEPC is essential for the development of new effective management approaches for t-NEPC. In this study, we identify a splice variant of the MYST/Esa1-associated factor 6 (MEAF6) gene, MEAF6-1, that is highly expressed in both t-NEPC tumor biopsies and neuroendocrine cell lines of prostate and lung cancers...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427002/incidental-posterior-mediastinal-paraganglioma-the-safe-approach-to-management-case-report
#9
Juan A Muñoz-Largacha, Roan J Glocker, Jacob Moalem, Michael J Singh, Virginia R Litle
INTRODUCTION: Paragangliomas are neuroendocrine tumors arising from chromaffin cells located in sympathetic paraganglia. Mediastinal paragangliomas are extremely rare and can be classified as functional or non-functional according to their ability for secreting catecholamines. Patients can be asymptomatic and the diagnosis is usually incidental. Complete surgical resection remains the standard of care for paragangliomas. PRESENTATION OF CASE: We present a 44-year-old woman with a functional mediastinal paraganglioma incidentally found during the perioperative imaging workup for a diagnosed breast carcinoma...
March 31, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28426491/treatment-of-pancreatic-neuroendocrine-tumors-in-multiple-endocrine-neoplasia-type-1-some-clarity-but-continued-controversy
#10
Robert T Jensen, Jeffrey A Norton
No abstract text is available yet for this article.
May 2017: Pancreas
https://www.readbyqxmd.com/read/28423608/anthracyclines-suppress-pheochromocytoma-cell-characteristics-including-metastasis-through-inhibition-of-the-hypoxia-signaling-pathway
#11
Ying Pang, Chunzhang Yang, Jan Schovanek, Herui Wang, Petra Bullova, Veronika Caisova, Garima Gupta, Katherine I Wolf, Gregg L Semenza, Zhengping Zhuang, Karel Pacak
Pheochromocytomas (PHEOs) and paragangliomas (PGLs) are rare, neuroendocrine tumors derived from adrenal or extra-adrenal chromaffin cells, respectively. Metastases are discovered in 3-36% of patients at the time of diagnosis. Currently, only suboptimal treatment options exist. Therefore, new therapeutic compounds targeting metastatic PHEOs/PGLs are urgently needed. Here, we investigated if anthracyclines were able to suppress the progression of metastatic PHEO. We explored their effects on experimental mouse PHEO tumor cells using in vitro and in vivo models, and demonstrated that anthracyclines, particularly idarubicin (IDA), suppressed hypoxia signaling by preventing the binding of hypoxia-inducible factor 1 and 2 (HIF-1 and HIF-2) to the hypoxia response element (HRE) sites on DNA...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423496/mtor-inhibitors-activate-perk-signaling-and-favor-viability-of-gastrointestinal-neuroendocrine-cell-lines
#12
Patricia Freis, Julien Bollard, Justine Lebeau, Patrick Massoma, Joëlle Fauvre, Cécile Vercherat, Thomas Walter, Serge Manié, Colette Roche, Jean-Yves Scoazec, Carole Ferraro-Peyret
mTOR and Unfolded Protein Response (UPR) are two signaling pathways frequently activated in cancer cells. The mTOR pathway has been shown to be up-regulated in most gastroenteropancreatic neuroendocrine tumors. In contrast, little is known about the UPR status in neoplastic neuroendocrine cells. However, these hormone-producing cells are likely to present distinctive adaptations of this pathway, as other secretory cells. We therefore analyzed the status of the three axes of UPR and their relation to mTOR pathway in two gastrointestinal neuroendocrine tumors (GI-NET) cell lines STC-1 and GluTag...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422824/pancreatic-carcinoids-serotonin-producing-pancreatic-neuroendocrine-neoplasms-report-of-5-cases-and-review-of-the-literature
#13
Nikolaos Tsoukalas, Eleftherios Chatzellis, Dimitra Rontogianni, Krystallenia I Alexandraki, Georgios Boutzios, Anna Angelousi, Gregory Kaltsas
INTRODUCTION: Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare tumors representing 1% to 2% of all pancreatic neoplasms. These tumors can secrete a variety of biologically active substances giving rise to distinct clinical symptoms or can be clinically nonfunctioning. Apart from insulinomas and gastrinomas, which constitute the majority of functioning pNENs, some tumors may secrete serotonin presenting with the features of the carcinoid syndrome. These so-called pancreatic carcinoids are considered relatively rare tumors and are associated with increased urinary levels of 5-hydroxyindoleacetic acid (5-HIAA)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421458/surgical-management-of-pancreatic-cysts-a-shifting-paradigm-toward-selective-resection
#14
REVIEW
Jon M Gerry, George A Poultsides
Due to the widespread use of high-quality cross-sectional imaging, pancreatic cystic neoplasms are being diagnosed with increasing frequency. Clinicians are therefore asked to counsel a growing number of patients with pancreatic cysts diagnosed incidentally at an early, asymptomatic stage. Over the last two decades, accumulating knowledge on the biologic behavior of these neoplasms along with improved diagnostics through imaging and endoscopic cyst fluid analysis have allowed for a selective therapeutic approach toward these neoplasms...
April 18, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28420292/neuroendocrine-tumor-of-cecum-in-patient-treated-with-imatinib-mesylate-for-blastic-phase-of-chronic-myeloid-leukemia
#15
Sabina Novaković, Anamarija Kovač Peić, Hrvoje Holik, Božena Coha
Imatinib mesylate (IM), a tyrosine kinase inhibitor, is the treatment of choice in patients with chronic myeloid leukemia (CML). It is considered a very safe drug, with mostly mild and reversible side effects. Lately, it has been suggested that adverse events may occur after a long term. We report a case of a 72-year-old woman diagnosed with blastic phase of Philadelphia chromosome positive CML treated with IM for 28 months. The patient presented first with ascites as a side effect of the drug. When the ascites re-occurred, it was caused by neuroendocrine tumor (NET) with peritoneal carcinomatosis...
April 19, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28417484/well-differentiated-neuroendocrine-tumors-in-skin-terminology-and-diagnostic-utility-of-cytokeratin-5-6-and-p63
#16
Gauri Panse, Shawn E Cowper, David J Leffell, Melissa Pulitzer, Christine J Ko
BACKGROUND: Well-differentiated neuroendocrine tumors (WDNETs) in skin include metastases from visceral primary sites and very uncommonly, primary cutaneous carcinoid tumors. Cutaneous WDNET may present a diagnostic challenge and in particular can be mistaken for a benign skin adnexal tumor. In contrast to cutaneous adnexal tumors, metastatic adenocarcinomas to the skin are cytokeratin 5/6 (CK 5/6) and p63 negative in the majority of cases. It is unclear if failure to stain with CK 5/6 and p63 would be helpful in differentiating WDNETs from cutaneous adnexal neoplasms...
April 17, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28416746/different-long-term-oncologic-outcomes-after-radical-surgical-resection-for-neuroendocrine-carcinoma-and-adenocarcinoma-of-the-stomach
#17
Jian-Wei Xie, Jun Lu, Jian-Xian Lin, Chao-Hui Zheng, Ping Li, Jia-Bin Wang, Qi-Yue Chen, Long-Long Cao, Mi Lin, Ru-Hong Tu, Chang-Ming Huang
PURPOSE: To explore differences in long-term outcomes between gastric neuroendocrine carcinoma (GNEC) and gastric adenocarcinoma (GAC). METHODS: One hundred GNEC patients and 3089 GAC patients were enrolled. Differences in long-term outcomes between the groups were analyzed by 1:2 propensity score matching. RESULTS: Statistically significant differences between the groups were noted in terms of gender, American Society of Anesthesiologists score, tumor size, T stage, N stage, TNM stage and surgical approach...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416359/marital-status-is-an-independent-prognostic-factor-for-pancreatic-neuroendocrine-tumors-patients-an-analysis-of-the-surveillance-epidemiology-and-end-results-seer-database
#18
Huaqiang Zhou, Yuanzhe Zhang, Yiyan Song, Wulin Tan, Zeting Qiu, Si Li, Qinchang Chen, Shaowei Gao
BACKGROUND AND OBJECTIVES: Marital status's prognostic impact on pancreatic neuroendocrine tumors (PNET) has not been rigorously studied. We aimed to explore the relationship between marital status and outcomes of PNET. METHODS: We retrospectively investigated 2060 PNET cases between 2004 and 2010 from Surveillance, Epidemiology, and End Results (SEER) database. Variables were compared by Chi(2) test, t-test as appropriate. Kaplan-Meier methods and COX proportional hazard models were used to ascertain independent prognostic factors...
April 14, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28415732/additional-k-ras-mutation-analysis-and-plectin-1-staining-improve-the-diagnostic-accuracy-of-pancreatic-solid-mass-in-eus-guided-fine-needle-aspiration
#19
Joo Kyung Park, Woo Hyun Paik, Byeong Jun Song, Ji Kon Ryu, Min A Kim, Jin Myung Park, Sang Hyub Lee, Yong-Tae Kim
BACKGROUND: One of the major genetic alterations in pancreatic ductal adenocarcinoma (PDAC) is the point mutation of K-ras gene. Plectin-1 was also recently identified as PDAC specific biomarker. The aim of this study was to investigate the improvement of diagnostic accuracy of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) by using additional K-ras mutation analysis and Plectin-1 staining in patients with pancreatic mass. METHODS: A total of 85 study patients with pancreatic mass underwent EUS-FNA and the final diagnoses were as follows; PDACs: 70 patients, pancreas neuroendocrine tumor: 4, metastasis to pancreas: 5, autoimmune pancreatitis: 3, chronic pancreatitis: 1, tuberculous lymphadenitis: 1, pseudocyst: 1...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414996/a-case-of-multiple-synchronous-quadruple-cancers-of-the-stomach-sigmoid-colon-rectum-and-pancreas
#20
Atsushi Nanashima, Tetsuro Tominaga, Takashi Nonaka, Kouki Wakata, Masaki Kunizaki, Shuichi Tobinaga, Yorihisa Sumida, Shigekazu Hidaka, Naoe Kinoshita, Terumitsu Sawai, Takeshi Nagayasu
INTRODUCTION: Multiple primary neoplasms are relatively rare, but their incidence has increased because of aging and improvements in diagnostic imaging. PRESENTATION OF CASE: A 67-year-old man presented with epigastric pain. On upper gastrointestinal endoscopy, an ulcer was seen at the gastric angle, and biopsy showed moderately differentiated adenocarcinoma (AC). Colonoscopy demonstrated a 15-mm lesion in the sigmoid colon and a submucosal lesion in the lower rectum...
April 2, 2017: International Journal of Surgery Case Reports
keyword
keyword
68229
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"