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Gastrointestinal Malignancies

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https://www.readbyqxmd.com/read/28540829/pseudomyxoma-peritonei-natural-history-and-treatment
#1
Rohin Mittal, Anuradha Chandramohan, Brendan Moran
Pseudomyxoma peritonei (PMP) is an uncommon disease characterized by mucinous ascites, classically originating from a ruptured low grade mucinous neoplasm of the appendix. The natural history of PMP revolves around the "redistribution phenomenon", whereby mucinous tumour cells accumulate at specific sites with relative sparing of the motile small bowel and to a lesser extent other parts of the gastrointestinal tract. Peritoneal tumour accumulates due to gravity and at the sites of peritoneal fluid absorption, namely, the greater and lesser omentum and the under-surface of the diaphragm, particularly on the right...
March 29, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540478/immune-checkpoint-inhibitor-induced-colitis-diagnosis-and-management
#2
REVIEW
Caroline Prieux-Klotz, Marie Dior, Diane Damotte, Johann Dreanic, Bertrand Brieau, Catherine Brezault, Vered Abitbol, Stanislas Chaussade, Romain Coriat
Immune checkpoint inhibitors are monoclonal antibodies indicated for an increasing number of malignant diseases. These agents can cause specific side effects, which need to be anticipated while clear patterns of management need to be established. Immune checkpoint inhibitor-mediated gastrointestinal side effects, including diarrhea and colitis, occur in up to 30% of patients. Severe colitis can lead to severe dehydration or intestinal perforation. Endoscopic lesions and histopathological features of immune checkpoint inhibitor-induced colitis are similar to an inflammatory bowel disease (IBD) flare...
May 24, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/28536353/the-continued-promise-and-many-disappointments-of-oncolytic-virotherapy-in-gastrointestinal-malignancies
#3
REVIEW
Daniel H Ahn, Tanios Bekaii-Saab
Oncolytic virotherapy represents a novel therapeutic strategy in the treatment of gastrointestinal malignancies. Oncolytic viruses, including genetically engineered and naturally occurring viruses, can selectively replicate in and induce tumor cell apoptosis without harming normal tissues, thus offering a promising tool in the armamentarium for cancer therapy. While this approach has garnered much interest over the past several decades, there has not been significant headway across various tumor types. The recent approval of talimogene laherparepvec, a second-generation oncolytic herpes simplex virus type-1, for the treatment of metastatic melanoma, confirms the therapeutic potential of oncolytic viral therapy...
March 4, 2017: Biomedicines
https://www.readbyqxmd.com/read/28535970/upper-extremity-deep-venous-thrombosis-after-port-insertion-what-are-the-risk-factors
#4
Omidreza Tabatabaie, Gyulnara G Kasumova, Tara S Kent, Mariam F Eskander, Ayotunde B Fadayomi, Sing Chau Ng, Jonathan F Critchlow, Nicholas E Tawa, Jennifer F Tseng
BACKGROUND: Totally implantable venous access devices (ports) are widely used, especially for cancer chemotherapy. Although their use has been associated with upper extremity deep venous thrombosis, the risk factors of upper extremity deep venous thrombosis in patients with a port are not studied adequately. METHODS: The Healthcare Cost and Utilization Project's Florida State Ambulatory Surgery and Services Database was queried between 2007 and 2011 for patients who underwent outpatient port insertion, identified by Current Procedural Terminology code...
May 20, 2017: Surgery
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#5
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
https://www.readbyqxmd.com/read/28533658/checkpoint-inhibitors-in-gastrointestinal-cancers-expectations-and-reality
#6
EDITORIAL
Hampig Raphael Kourie, Samer Tabchi, Marwan Ghosn
Immune checkpoint inhibitors represent revolutionary anti-cancer agents, being rapidly approved in different malignancies and settings. Gastrointestinal (GI) cancers represent a wide variety of tumors with specific characteristics and different responses to various therapeutic alternatives; while some are chemo-sensitive others are chemo-resistant and only respond to more aggressive cytotoxic regimens, targeted therapies or a combination of both. Preliminary results of immune checkpoint inhibitors in some GI cancers are promising, namely in hepatocellular carcinoma, anal cancers and microsatellite instability high colorectal cancers...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28522912/recent-upper-gastrointestinal-panendoscopy-increases-the-risk-of-pyogenic-liver-abscess
#7
Ming-Jen Tsai, Chin-Li Lu, Ying C Huang, Chung Hsien Liu, Wan-Ting Huang, Kai-Yuan Cheng, Solomon Chih-Cheng Chen
AIM: To investigate the association between a recent gastrointestinal (GI) endoscopy and the subsequent risk of pyogenic liver abscess (PLA). METHODS: We designed a nested case control study. Using the Taiwan National Health Insurance Research Database, 2135 patients with a first diagnosis of PLA were identified from 1998 to 2011. Another 10675 patients without PLA matched by age and sex were selected as reference controls. We identified and compared the possible risk factors for PLA and GI endoscopies performed before the index date (when PLA was diagnosed) between the two cohorts...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28513632/how-to-stomach-an-epigenetic-insult-the-gastric-cancer-epigenome
#8
REVIEW
Nisha Padmanabhan, Toshikazu Ushijima, Patrick Tan
Gastric cancer is a deadly malignancy afflicting close to a million people worldwide. Patient survival is poor and largely due to late diagnosis and suboptimal therapies. Disease heterogeneity is a substantial obstacle, underscoring the need for precision treatment strategies. Studies have identified different subgroups of gastric cancer displaying not just genetic, but also distinct epigenetic hallmarks. Accumulating evidence suggests that epigenetic abnormalities in gastric cancer are not mere bystander events, but rather promote carcinogenesis through active mechanisms...
May 17, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28511402/bladder-adenocarcinoma-a-persisting-diagnostic-dilemma
#9
Geetha Vasudevan, Arijit Bishnu, Brij Mohan Kumar Singh, Deepak M Nayak, Pooja Jain
Primary urinary Bladder Adenocarcinoma (PBA) is an uncommon neoplasm and can cause diagnostic difficulties due to histologic similarities with adenocarcinomas of adjacent structures like Gastrointestinal Tract (GIT) and prostate, since involvement of the bladder by metastasis or direct spread can occur. Seven cases of bladder adenocarcinomas were diagnosed during a period of four years in a tertiary care hospital. Patient's age ranged from 26-78 years with a male predilection. Three cases were signet ring type adenocarcinomas, two cases were subtyped as enteric variant, one as mucinous variant and one as adenocarcinoma Not Otherwise Specified (NOS) variant...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511234/indications-results-and-clinical-impact-of-endoscopic-ultrasound-eus-guided-sampling-in-gastroenterology-european-society-of-gastrointestinal-endoscopy-esge-clinical-guideline-updated-january-2017
#10
Jean-Marc Dumonceau, Pierre H Deprez, Christian Jenssen, Julio Iglesias-Garcia, Alberto Larghi, Geoffroy Vanbiervliet, Guruprasad P Aithal, Paolo G Arcidiacono, Pedro Bastos, Silvia Carrara, László Czakó, Gloria Fernández-Esparrach, Paul Fockens, Àngels Ginès, Roald F Havre, Cesare Hassan, Peter Vilmann, Jeanin E van Hooft, Marcin Polkowski
For pancreatic solid lesions, ESGE recommends performing endoscopic ultrasound (EUS)-guided sampling as first-line procedure when a pathological diagnosis is required. Alternatively, percutaneous sampling may be considered in metastatic disease.Strong recommendation, moderate quality evidence.In the case of negative or inconclusive results and a high degree of suspicion of malignant disease, ESGE suggests re-evaluating the pathology slides, repeating EUS-guided sampling, or surgery.Weak recommendation, low quality evidence...
May 16, 2017: Endoscopy
https://www.readbyqxmd.com/read/28508827/multiple-primary-malignant-neoplasms-a-10-year-experience-at-a-single-institution-from-turkey
#11
Durmus Etiz, Evrim Metcalfe, Melek Akcay
PURPOSE: The development of improved diagnostic techniques, increased survival, and life expectancy of cancer patients have all contributed to the higher frequency of multiple primary malignant neoplasms (MPMN). MPMN can be divided into two main categories: Synchronous MPMN (sMPMN) and metachronous MPMN (mMPMN). MATERIALS AND METHODS: 122 patients with MPMN analyzed retrospectively who were admitted to the Radiation Oncology Department of Eskisehir Osmangazi University Medical Faculty from January 2004 to December 2013...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28507487/demographic-characteristics-aetiology-and-assessment-of-treatment-options-in-leukocytoclastic-vasculitis
#12
Alkim Unal Cakiter, Ozlem Su Kucuk, Dilek Biyik Ozkaya, Bugce Topukcu, Nahide Onsun
INTRODUCTION: Vasculitides are a heterogeneous group of diseases characterized by inflammation of the blood vessel walls. Etiological factors include infections, drugs, connective tissue diseases, and malignancies. AIM: To examine the demographic characteristics, etiological factors, and treatment options in 75 patients with leukocytoclastic vasculitis. MATERIAL AND METHODS: The study included 75 patients diagnosed with leukocytoclastic vasculitis at our clinic...
April 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28503336/plasmacytoma-as-a-mimicker-of-colonic-carcinoma-in-an-elderly-man
#13
Sara Mathew George, Eman Ali Aljufairi, Nisha Chandran, Sayed Ali Isa Almahari
Multiple myeloma is a neoplastic proliferation of monoclonal plasma cells. Although it is usually restricted to the bone marrow, extraskeletal spread in the form of localised extramedullary collections of malignant plasma cells (plasmacytomas) can occur. However, gastrointestinal tract involvement in multiple myeloma is rare and overt gastrointestinal bleeding from plasmacytoma is uncommon. We report a case of colonic plasmacytoma which presented with bleeding per rectum and was initially misdiagnosed as colonic neuroendocrine carcinoma...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28501083/the-gastric-microbiome-and-its-influence-on-gastric-carcinogenesis-current-knowledge-and-ongoing-research
#14
REVIEW
Chao Zhang, Sarah Ellen Powell, Doron Betel, Manish A Shah
Gastric malignancies are a leading cause of cancer-related death worldwide. At least 2 microbial species are currently linked to carcinogenesis and the development of cancer within the human stomach. These include the bacterium Helicobacter pylori and the Epstein-Barr virus. In recent years, there has been increasing evidence that within the human gastrointestinal tract it is not only pathogenic microbes that impact human health but also the corresponding autochthonous microbial communities. This article reviews the gastrointestinal microbiome as it relates primarily to mechanisms of disease and carcinogenesis within the upper gastrointestinal tract...
June 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/28498235/hospital-minimally-invasive-surgery-utilization-for-gastrointestinal-cancer
#15
Meredith C Mason, Hop S Tran Cao, Samir S Awad, Farhood Farjah, George J Chang, Nader N Massarweh
OBJECTIVE: The aim of the study was to evaluate the impact of receiving care at high minimally invasive surgery (MIS)-utilizing hospitals BACKGROUND:: MIS techniques are used across surgical specialties. The extent of MIS utilization for gastrointestinal (GI) cancer resection and impact of receiving care at high utilizing hospitals is unclear. METHODS: This is a retrospective cohort study of 137,581 surgically resected esophageal, gastric, pancreatic, hepatobiliary, colon, and rectal cancer patients within the National Cancer Data Base (2010-2013)...
May 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28497381/deep-benign-fibrous-histiocytoma-of-the-anterior-mediastinum-mimicking-malignancy
#16
Angelica Puopolo, William Newmarch, Brian Casserly
The following report describes the case of a 43-year-old male smoker that was referred to the rapid access lung clinic with haemoptysis, chest pain, and axillary lymphadenopathy-a clinical picture that raised concern for a possible underlying malignancy. Preliminary investigations revealed elevated D-dimers, low-volume haemoptysis, and a normal chest X-ray, which lowered the index of suspicion. However, computed tomography (CT) pulmonary angiogram identified a right hilar mass, several parenchymal cysts, and a large mediastinal mass...
May 11, 2017: Lung
https://www.readbyqxmd.com/read/28496533/the-diagnostic-value-of-alarm-features-for-identifying-types-and-stages-of-upper-gastrointestinal-malignancies
#17
Shou-Wu Lee, Chi-Sen Chang, Hong-Jeh Yeh, Han-Chung Lien, Teng-Yu Lee, Yen-Chun Peng
BACKGROUND: Upper gastrointestinal (GI) malignancies are an uncommon cause of dyspepsia but of great concern. The aim of this study was to determine the association between alarm features and each type and stage of upper GI malignancies. METHODS: Patients who underwent endoscopy for symptoms of dyspepsia between January 2008 and December 2009 were retrospectively collected. Alarm features studied in this study were dysplasia, body weight loss and GI bleeding. Patients were classified according to the findings of endoscopy and histological reports...
April 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28495530/erythrocyte-membrane-nanoparticles-improve-the-intestinal-absorption-of-paclitaxel
#18
Xing Jiang, Kaikai Wang, Zaigang Zhou, Yifan Zhang, Huizi Sha, Qiuping Xu, Jie Wu, Juan Wang, Jinhui Wu, Yiqiao Hu, Baorui Liu
Paclitaxel (PTX) is a cytotoxic chemotherapy drug with encouraging activity in human malignancies. However, free PTX has a very low oral bioavailability due to its low aqueous solubility and the gastrointestinal drug barrier. In order to overcome this obstacle, we have designed erythrocyte membrane nanoparticles (EMNP) using sonication method. The permeability of PTX by EMNP was 3.5-fold (Papp = 0.425 nm/s) and 16.2-fold (Papp = 394.1 nm/s) higher than free PTX in MDCK-MDR1 cell monolayers and intestinal mucosal tissue, respectively...
May 8, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28494535/tak-264-mln0264-in-previously-treated-asian-patients-with-advanced-gastrointestinal-carcinoma-expressing-guanylyl-cyclase-c-results-from-an-open-label-non-randomized-phase-1-study
#19
Yung-Jue Bang, Toshimi Takano, Chia-Chi Lin, Adedigbo Fasanmade, Huyuan Yang, Hadi Danaee, Takayuki Asato, Thea Kalebic, Hui Wang, Toshihiko Doi
Purpose: This phase 1 dose-escalation portion of the study evaluated the safety, pharmacokinetics (PK), and antitumor activity of TAK-264 in Asian patients with advanced gastrointestinal (GI) carcinoma or metastatic or recurrent gastric or gastroesophageal junction adenocarcinoma expressing guanylyl cyclase C (GCC). Materials and Methods: Adult patients with advanced GI malignancies expressing GCC (H-score ≥ 10) received TAK-264 on day 1 of 3-week cycles as 30-minute intravenous infusions for up to 1 year or until disease progression or unacceptable toxicity...
May 10, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28493803/soft-tissue-sarcomas-of-the-abdomen-and-pelvis-radiologic-pathologic-features-part-2-uncommon-sarcomas
#20
Angela D Levy, Maria A Manning, Markku M Miettinen
Soft-tissue sarcomas occurring in the abdomen and pelvis are an uncommon but important group of malignancies. Recent changes to the World Health Organization classification of soft-tissue tumors include the movement of gastrointestinal stromal tumors (GISTs) into the soft-tissue tumor classification. GIST is the most common intraperitoneal sarcoma. Liposarcoma is the most common retroperitoneal sarcoma, and leiomyosarcoma is the second most common. GIST, liposarcoma, and leiomyosarcoma account for the majority of sarcomas encountered in the abdomen and pelvis and are discussed in part 1 of this article...
May 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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