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Gastrointestinal neuroendocrine tumors

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https://www.readbyqxmd.com/read/28448665/trends-in-the-incidence-prevalence-and-survival-outcomes-in-patients-with-neuroendocrine-tumors-in-the-united-states
#1
Arvind Dasari, Chan Shen, Daniel Halperin, Bo Zhao, Shouhao Zhou, Ying Xu, Tina Shih, James C Yao
Importance: The incidence and prevalence of neuroendocrine tumors (NETs) are thought to be rising, but updated epidemiologic data are lacking. Objective: To explore the evolving epidemiology and investigate the effect of therapeutic advances on survival of patients with NETs. Design, Setting, and Participants: A retrospective, population-based study using nationally representative data from the Surveillance, Epidemiology, and End Results (SEER) program was conducted to evaluate 64 971 patients with NETs from 1973 to 2012...
April 27, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28423496/mtor-inhibitors-activate-perk-signaling-and-favor-viability-of-gastrointestinal-neuroendocrine-cell-lines
#2
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/28414996/a-case-of-multiple-synchronous-quadruple-cancers-of-the-stomach-sigmoid-colon-rectum-and-pancreas
#3
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
https://www.readbyqxmd.com/read/28414765/validation-of-full-field-optical-coherence-tomography-in-distinguishing-malignant-and-benign-tissue-in-resected-pancreatic-cancer-specimens
#4
Labrinus van Manen, Paulien L Stegehuis, Arantza Fariña-Sarasqueta, Lorraine M de Haan, Jeroen Eggermont, Bert A Bonsing, Hans Morreau, Boudewijn P F Lelieveldt, Cornelis J H van de Velde, Alexander L Vahrmeijer, Jouke Dijkstra, J Sven D Mieog
BACKGROUND: Pancreatic cancer is the fourth leading cause of cancer-related mortality in the United States. The minority of patients can undergo curative-intended surgical therapy due to progressive disease stage at time of diagnosis. Nonetheless, tumor involvement of surgical margins is seen in up to 70% of resections, being a strong negative prognostic factor. Real-time intraoperative imaging modalities may aid surgeons to obtain tumor-free resection margins. Full-field optical coherence tomography (FF-OCT) is a promising diagnostic tool using high-resolution white-light interference microscopy without tissue processing...
2017: PloS One
https://www.readbyqxmd.com/read/28355962/indications-and-outcomes-from-32-consecutive-patients-for-the-treatment-of-rectal-lesions-by-transanal-minimally-invasive-surgery
#5
Luis J García-Flórez, Jorge L Otero-Díez, Ana I Encinas-Muñiz, Luis Sánchez-Domínguez
BACKGROUND: The aim of this study was to evaluate the feasibility, safety, perioperative morbidity, and short-term outcomes of the transanal minimally invasive surgery (TAMIS) technique. METHODS: This is a descriptive review of prospectively collected data from 32 consecutive patients who underwent TAMIS procedures in our colorectal unit over a 40-month period. GelPOINT Path port was used in all cases. Demographic data, indications, tumor characteristics, morbidity, and follow-up data were collected...
March 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28353005/management-and-outcome-of-children-with-neuroendocrine-tumors-of-the-appendix-in-spain-is-there-room-for-improvement
#6
P Pérez-Albert, T de Rojas, M Á Lendínez, L Illade, M García-Abos, J Alonso-Cadenas, M Andión, L Madero
PURPOSE: Neuroendocrine tumors (NETs) are, after lymphomas, the most frequent gastrointestinal tumors in children, mainly located in the appendix. Best management remains unclear, given the absence of pediatric guidelines. We present the first Spanish series of pediatric patients with NETs. PATIENTS AND METHODS: Retrospective study of all pediatric patients (<18 years) with NET treated in four oncology reference institutions in Spain between 1994 and 2015. RESULTS: Seventeen patients were included...
March 28, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28344664/current-understanding-and-approach-to-well-differentiated-lung-neuroendocrine-tumors-an-update-on-classification-and-management
#7
REVIEW
Talal Hilal
Neuroendocrine tumors (NETs) are rare neoplasms that can arise from any tissue. They are classified based on embryonic gut derivative (i.e. foregut, midgut and hindgut) with midgut tumors being the most common (e.g. gastrointestinal NET). The second most common category of NETs is that which arises from the lung. In fact, 25% of primary lung cancers are NETs, including small cell lung cancer (SCLC), which comprises 20% of all lung cancers. The remaining 5% are large cell neuroendocrine cancer (LCNEC, 3%), typical carcinoids (TCs, 1...
March 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28343336/sunitinib-induced-hypothyroidism-predicts-progression-free-survival-in-metastatic-renal-cell-carcinoma-patients
#8
Anna Buda-Nowak, Jakub Kucharz, Paulina Dumnicka, Marek Kuzniewski, Roman Maria Herman, Aneta L Zygulska, Beata Kusnierz-Cabala
Sunitinib is a tyrosine kinase inhibitor (TKI) used in treatment of metastatic renal cell carcinoma (mRCC), gastrointestinal stromal tumors and pancreatic neuroendocrine tumors. One of the most common side effects related to sunitinib is hypothyroidism. Recent trials suggest correlation between the incidence of hypothyroidism and treatment outcome in patients treated with TKI. This study evaluates whether development of hypothyroidism is a predictive marker of progression-free survival (PFS) in patients with mRCC treated with sunitinib...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28336164/expression-of-unusual-immunohistochemical-markers-in-mucinous-breast-carcinoma
#9
Rodrigo de Andrade Natal, Sophie F Derchain, Marina Pavanello, Geisilene R Paiva, Luis O Sarian, José Vassallo
BACKGROUND: Mucinous breast carcinoma is characterized by the production of variable amounts of mucin. Some studies have addressed immunohistochemical characterization of mucinous breast carcinoma using a limited set of antibodies. However, the purpose of the present study was to investigate a larger panel of markers not widely used in daily practice and to determine their pathological implications. METHODS: Forty patients diagnosed with mucinous breast carcinoma were enrolled...
March 20, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28329738/transarterial-chemo-embolization-for-liver-metastases-in-patients-with-neuroendocrine-tumors
#10
Hiroyuki Okuyama, Masafumi Ikeda, Hideaki Takahashi, Izumi Ohno, Yusuke Hashimoto, Shuichi Mitsunaga, Yasunari Sakamoto, Shunsuke Kondo, Chigusa Morizane, Hideki Ueno, Tatsushi Kobayashi, Yasuaki Arai, Takuji Okusaka
OBJECTIVE: The aim of this study was to evaluate the safety and efficacy of transarterial (chemo)embolization [TA(C)E] for the control of liver metastasis in patients with neuroendocrine tumors (NETs). METHODS: In this retrospective study, we enrolled 43 patients with metastatic NETs who had been treated with TA(C)E between December 1999 and June 2013 at the National Cancer Center Hospital, Tokyo or the National Cancer Center Hospital East, Kashiwa. We assessed tumor response, time to treatment failure (TTF), overall survival (OS), and frequency of adverse events in these patients, and attempted to identify predictors of TTF...
March 23, 2017: Oncology
https://www.readbyqxmd.com/read/28316152/-long-term-follow-up-to-identify-the-rectal-potentially-malignant-nodules-in-female-by-digital-rectal-examination
#11
S S Wang, J Y Zhou, Z J Wang, S R Su, J Sun, R G W Sharen
Objective: To investigate the characteristics of the rectal potentially malignant nodules in female by digital rectal examination (DRE). Methods: Retrospectively, we collected the medical information and follow-up of rectal nodules cases diagnosed as benign by DRE during the health check-up in our hospital from Jan 2002 to Dec 2015. All nodules were recorded position, size, shape, hardness and mobility. Statistical analysis was performed to select the potentially malignant cases of postoperative pathological diagnosis and disappeared nodules followed up by DRE...
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28302003/liver-transplant-for-nonhepatocellular-carcinoma-malignancy
#12
Nihan Haberal Reyhan
Liver transplant is now an acceptable and effective treatment for specific nonhepatocellular malignancies. Worldwide, hilar cholangiocarcinoma accounts for 3% of all primary gastrointestinal malignancies and for 10% of primary hepatobiliary malignancies. For patients who have early-stage, unresectable cholangiocarcinoma, liver transplant preceded by neoadjuvant radiotherapy can result in tumor-free margins, accomplish a radical resection, and treat the underlying primary sclerosing cholangitis when present...
March 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28296749/gastrointestinal-involvement-by-mantle-cell-lymphoma-observed-by-endoscopy-a-case-report
#13
De-Ming Li, Yue-Ping Jiang
INTRODUCTION: Mantle cell lymphoma (MCL) is a subtype of non-Hodgkin B-cell lymphoma, accounting for 6% of all non-Hodgkin lymphoma. The typical appearance of intestinal MCL is multiple lymphomatous polyposis, whereas presentation as protruding lesions is uncommon. We herein report the case of a 64-year-old male patient who was admitted to our hospital with epigastric pains. On endoscopy, submucosal neoplasma were identified in the gastric antrum, the duodenal bulb, and the rectum. On endoscopic ultrasonography (EUS) (OLYMPUS EUS EU-ME2, Miniprobe sonography), the lesions were homogeneously hypoechoic and originated from the submucous layer or muscularis mucosa...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28289663/high-grade-mixed-adenoneuroendocrine-carcinoma-in-the-cecum-a-case-report
#14
Sang Ho Shin, Sae Hee Kim, Sung Hee Jung, Ji Woong Jang, Min Seok Kang, Sang Il Kim, Ji Hye Kim, Jun Ho Lee
Gastrointestinal neoplasms with an exocrine and a neuroendocrine component are rare. Such neoplasms are called "mixed adenoneuroendocrine carcinomas" (MANECs) according to the most recent World Health Organization classification of gastrointestinal tract neoplasms. MANECs have no specific findings that distinguish them from pure adenocarcinomas. In addition, the optimal management strategy of MANECs is largely unknown. We describe the case of a 32-year-old man with dizziness and abdominal bloating. A cecal mass was suspected based on an image study done at a local clinic...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28287937/multimodality-imaging-findings-in-carcinoid-tumors-a-head-to-toe-spectrum
#15
Ameya Jagdish Baxi, Kedar Chintapalli, Amol Katkar, Carlos S Restrepo, Sonia L Betancourt, Abhijit Sunnapwar
Carcinoid tumors are a rare biologically heterogeneous group of neuroendocrine tumors with a spectrum ranging from benign indolent to aggressive metastatic tumors. They belong to the category of amine precursor uptake and decarboxylase tumors, or apudomas. The most common sites for primary locations are the gastrointestinal and respiratory tracts; however, any organ can be involved. The clinical presentation depends on location, aggressiveness, production of biologically active amines and peptides, paraneoplastic syndromes, and tendency for metastasis...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28286921/treatment-strategies-for-metastatic-neuroendocrine-tumors-of-the-gastrointestinal-tract
#16
REVIEW
Mauro Cives, Jonathan Strosberg
The therapeutic landscape of gastroenteropancreatic-neuroendocrine tumors (GEP-NETs) has evolved significantly in recent years. Current and emerging treatment options include somatostatin analogs, radiolabeled somatostatin analogs, the mTOR inhibitor everolimus, and the tyrosine kinase inhibitor sunitinib. Although high-quality data from phase III trials are lacking, cytotoxic agents are commonly used for the treatment of poorly differentiated neuroendocrine carcinomas and well-differentiated NETs originating in the pancreas...
March 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28283864/lower-gastrointestinal-neuroendocrine-neoplasms-associated-with-hereditary-cancer-syndromes-a-case-series
#17
Trilokesh D Kidambi, Christina Pedley, Amie Blanco, Emily K Bergsland, Jonathan P Terdiman
Lower gastrointestinal (GI) neuroendocrine neoplasms (NENs) of the colon and rectum are uncommon and not traditionally associated with hereditary GI cancer syndromes. However, with widespread implementation of colorectal cancer screening programs, lower GI NENs are being identified with increasing frequency. We report the first case series of six patients with lower GI NENs who were diagnosed with hereditary GI cancer syndromes by germline testing. Two patients presented with poorly differentiated rectal neuroendocrine carcinoma (NECs) with colonic polyposis and were found to have Familial Adenomatous Polyposis and MYH-Associated Polyposis, respectively...
March 10, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28270879/anal-neuroendocrine-tumor-masquerading-as-external-hemorrhoids-a-case-report
#18
Muhammad Khan, Ahmed Dirweesh, Chikezie Alvarez, Herbert Conaway, Robert Moser
Neuroendocrine tumors in gastrointestinal (GI) tract are a rare source of GI malignancy with an estimated incidence of 2.5 - 5 per 100,000 people per year and the prevalence of 35 per 100,000. In the GI tract, they are located in decreasing order of frequency in appendix, ileum, rectum, stomach, and colon. Those found in the anal region represent just 1% of all malignancies of the anal canal. Their clinical presentation can be widely varying, sometimes being found incidentally with metastatic disease and an unknown primary source...
February 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28270118/a-case-of-type-1-multiple-endocrine-neoplasia-with-esophageal-stricture-successfully-treated-with-endoscopic-balloon-dilation-and-local-steroid-injection-combined-with-surgical-resection-of-gastrinomas
#19
Hiroyuki Matsubayashi, Noboru Kawata, Naomi Kakushima, Masaki Tanaka, Kohei Takizawa, Yoshimi Kiyozumi, Yasue Horiuchi, Keiko Sasaki, Teiichi Sugiura, Katsuhiko Uesaka, Hiroyuki Ono
BACKGROUND: In type 1 multiple endocrine neoplasia (MEN1), esophageal diseases association with excessive gastrin secretion in Zollinger-Ellison syndrome (ZES) sometimes develop. Here, we reported a case of MEN1/ZES, who developed dysphagia due to reflux esophagitis with severe esophageal stricture. Treatment for his esophageal stricture and ZES was discussed. CASE PRESENTATION: A 43-year-old man with progressive dysphagia and diarrhea was referred to the teaching hospital...
March 7, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28263217/peptide-receptor-radionuclide-therapy-with-177-lu-octreotate-in-patients-with-somatostatin-receptor-expressing-neuroendocrine-tumors-six-years-assessment
#20
Mohammadali Hamiditabar, Muzammil Ali, Joseph Roys, Edward M Wolin, Thomas M OʼDorisio, David Ranganathan, Izabela Tworowska, Jonathan R Strosberg, Ebrahim S Delpassand
OBJECTIVES: Peptide receptor radionuclide therapy (PRRT) with radiolabeled somatostatin analogues is a promising treatment for patients with inoperable, well to moderately differentiated metastatic neuroendocrine tumors (NETs). In continuation of our novel study with the radionuclide lutetium Lu, we now present further results of Lu DOTATATE therapy in managing NETs and other somatostatin receptor-expressing tumors in a larger and more diverse patient group. PATIENTS AND METHODS: One hundred forty-four consecutive patients (85 men and 59 women; age range, 11-87 years; mean age, 58...
March 3, 2017: Clinical Nuclear Medicine
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