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Adenocarcinoma large bowel

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https://www.readbyqxmd.com/read/29755780/appendiceal-diverticulosis-a-harbinger-of-underlying-primary-appendiceal-adenocarcinoma
#1
Jia Lin Ng, Shing Lih Wong, Ronnie Mathew
Diagnosis of primary appendiceal adenocarcinoma (PAA) is hindered by its rarity and largely asymptomatic nature. Appendiceal diverticulosis (AD) is equally rare. We report an unusual case of PAA presenting with perforated appendiceal diverticulitis, and discuss a review of the literature about its association, and its surgical and pathological implications. A middle-aged man was admitted with right iliac fossa (RIF) pain and a corresponding tender abdominal mass for 5 days. Computerised tomography (CT) scan demonstrated a thickened appendix with 3 cm abscess at its base...
April 2018: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29617680/the-role-of-crush-cytology-in-the-diagnosis-of-large-intestine-lesions-with-correlation-on-histopathology
#2
Chaithra Gv, Debarshi Saha, Richa Yadav, Deepa S Adiga, Flore D Lobo, Apurv Ghosh, Jyoti Kini
OBJECTIVE: To study the efficacy of colonoscopic crush cytology as a convenient and near-accurate method to evaluate colonic neoplasms. STUDY DESIGN: Retrospective and cross-sectional. The original cytologic diagnoses were correlated with a histology report on 100 cases sent to the cytology laboratory over 2 years. RESULTS: Of the 100 cases, 25 were nonmalignant. Of the 75 malignant lesions, 72 could be identified as positive for malignancy on cytology...
April 4, 2018: Acta Cytologica
https://www.readbyqxmd.com/read/29562499/potential-biomarkers-for-the-early-diagnosis-of-colorectal-adenocarcinoma-transcripto-mic-analysis-of-four-clinical-stages
#3
Grażyna Janikowska, Tomasz Janikowski, Alina Pyka-Paj K, Urszula Mazurek, Marcin Janikowski, Maciej Gonciarz, Zbigniew Lorenc
BACKGROUNDS: Colorectal cancer is the third most common cancer in economically developed countries. Molecular studies and, in particular, gene expression have contributed to advances in the diagnosis and treatment of many cancers. Genes can be molecular and therapeutic markers, but because of the large molecular diversity in colorectal cancer the knowledge is not yet fully established. Probably one of the most crucial processes during early cancer development is inflammation. The inflammatory response in the tumor is an important indicator of molecular etiology and later of cancer progression...
March 2, 2018: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29526964/large-bowel-progressive-stricture-after-infliximab-therapy-for-crohn-s-disease
#4
Katsunori Matsueda, Tatsuya Toyokawa, Masahiro Sakata, Isao Fujita, Jouichiro Horii
This case report refers to a 31-year-old patient with an 11-year history of Crohn's disease. The patient presented with an edematous elevated lesion in the splenic flexure. Two histological analyses revealed no signs of obvious dysplasia, and the patient subsequently began infliximab treatment. Nine months later, a worsening of the stricture of the edematous elevated lesion was observed in the splenic flexure, and transverse colonic resection was performed. A histological investigation of the lesion in the splenic flexure revealed advanced adenocarcinoma...
March 9, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29523759/landscape-of-tumor-mutation-load-mismatch-repair-deficiency-and-pd-l1-expression-in-a-large-patient-cohort-of-gastrointestinal-cancers
#5
Mohamed E Salem, Alberto Puccini, Axel Grothey, Derek Raghavan, Richard M Goldberg, Joanne Xiu, W Michael Korn, Benjamin A Weinberg, Jimmy J Hwang, Anthony F Shields, John L Marshall, Philip A Philip, Heinz-Josef Lenz
The efficacy of immunotherapy varies widely among different gastrointestinal cancers. Response to immune checkpoint inhibitors is shown to correlate with tumor mutation load (TML), mismatch repair deficiency (dMMR) status, and programmed cell death-ligand 1 (PD-L1) expression. Herein, we quantify TML, dMMR, and PD-L1 expression and determine their interrelationship in gastrointestinal cancers. Here, a total of 4,125 tumors from 14 different gastrointestinal cancer sites were studied using validated assays. Next-generation sequencing was performed on genomic DNA isolated from formalin-fixed paraffin-embedded tumor specimens using the NextSeq platform...
May 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29522538/exome-wide-somatic-mutation-characterization-of-small-bowel-adenocarcinoma
#6
Ulrika A Hänninen, Riku Katainen, Tomas Tanskanen, Roosa-Maria Plaketti, Riku Laine, Jiri Hamberg, Ari Ristimäki, Eero Pukkala, Minna Taipale, Jukka-Pekka Mecklin, Linda M Forsström, Esa Pitkänen, Kimmo Palin, Niko Välimäki, Netta Mäkinen, Lauri A Aaltonen
Small bowel adenocarcinoma (SBA) is an aggressive disease with limited treatment options. Despite previous studies, its molecular genetic background has remained somewhat elusive. To comprehensively characterize the mutational landscape of this tumor type, and to identify possible targets of treatment, we conducted the first large exome sequencing study on a population-based set of SBA samples from all three small bowel segments. Archival tissue from 106 primary tumors with appropriate clinical information were available for exome sequencing from a patient series consisting of a majority of confirmed SBA cases diagnosed in Finland between the years 2003-2011...
March 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29484306/conundrum-of-a-large-bowel-neoplasm-collision-tumor
#7
Antonio R Soto, Ekie G Vazquez, Nicole M Grigg-Gutierrez, Priscilla Magno-Pagatzaurtundua, William Cáceres, Doris H Toro
A 79-year-old Hispanic man was admitted to the intensive care unit with symptomatic iron-deficiency anemia and watery diarrhea. Radiological images revealed diffuse colonic wall thickening, a soft-tissue fullness in the ascending colon, and multiple mesenteric lymphadenopathies. Colonoscopy showed multiple aphthous ulcers throughout the colon and a large deep ulcer with irregular raised borders in the rectosigmoid area. Histological exam of the ulcers showed severe ulcerative colitis, while biopsy of the deep ulcer revealed a well-differentiated adenocarcinoma...
2018: ACG Case Reports Journal
https://www.readbyqxmd.com/read/29482082/metastatic-gastric-adenocarcinoma-and-synchronous-carcinoid-tumour-mimicking-appendicitis-a-case-report
#8
Q B Tran, R Mizumoto, S Ratnayake, B Strekozov
INTRODUCTION: Silent metastatic gastric adenocarcinoma presenting as appendicitis is very rare. Rare pathologies may be encountered during common operations such as appendicectomy and an awareness of possible alternative pathological entities would be helpful in a surgeon's wealth of knowledge. PRESENTATION OF CASE: A 63-year-old man presented with a three-day history of acute abdominal pain suggestive of appendicitis. Intra-operatively, a macroscopically inflamed and perforated appendix was found...
2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29475926/cullin-1-and-2-protein-expression-in-colorectal-cancer-correlation-with-clinicopathological-variables
#9
Othon Michail, Demetrios Moris, Stamatios Theocharis, John Griniatsos
BACKGROUND/AIM: The cullin (CUL) family of proteins is involved in the ubiquitin/mediated degradation of proteins, regulating cell proliferation, cell-cycle control, migration, invasion and metastasis in the process of tumor progression. The aim of the present study was to examine if there is any correlation between the immunohistochemical (IHC) expression of Cullin-1 and -2 proteins in colorectal cancer tissue specimens with several clinicopathological variables. MATERIALS AND METHODS: Between January 2012 and December 2014, 96 consecutive adenocarcinoma patients were submitted to oncological colectomy, as the first therapeutic option, with a curative intent...
March 2018: In Vivo
https://www.readbyqxmd.com/read/29313694/right-colon-mucinous-adenocarcinoma-mimicking-a-hydatid-cyst
#10
Noelia Ibáñez, Juan Ángel Fernández, Álvaro Jesús Gómez, Pascual Parrilla
Hydatid disease is a fecal-oral transmission zoonosis which is endemically distributed among Mediterranean countries such as Morocco. It usually presents asymptomatically and a diagnosis is made due to cyst complications. It is most frequently located in the liver and lungs and forms large masses. The incidence of colon cancer has increased amongst population under 50 years of age during the last few decades. It has been proposed that young adult cases may have histological characteristics with a more aggressive clinical behavior...
March 2018: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28988888/small-bowel-tumors-a-digestive-endoscopy-society-of-taiwan-dest-multicenter-enteroscopy-based-epidemiologic-study
#11
Chen-Shuan Chung, Chi-Ming Tai, Tien-Yu Huang, Chen-Wang Chang, Kuan-Chih Chen, Chao-Ming Tseng, Horng-Yuan Wang, Cheng-Hsin Chu, Jiann-Ming Wu, Yun Chen, Hsiu-Po Wang
BACKGROUND/PURPOSE: Small bowel (SB) accounts for the majority of gastrointestinal tract but its tumors are rare and always overlooked. In this study, we aimed to evaluate the epidemiology of SB tumors. METHODS: This multicenter retrospective study utilized endoscopy database from 2006/11 to 2016/07. Baseline demographic characteristics, clinical, radiologic and endoscopic findings were collected. RESULTS: Totally 103 (34 benign, 69 malignant lesions) patients with SB tumors in 1070 enteroscopic examinations were enrolled...
October 5, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28982894/recurrence-and-survival-outcomes-after-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-for-small-bowel-adenocarcinoma
#12
Akshat Saxena, Sarah J Valle, Winston Liauw, David L Morris
BACKGROUND: Peritoneal dissemination of small bowel adenocarcinoma (SBA) is rare but is associated with a dismal prognosis. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) is a promising treatment option. We evaluated our experience of CRS-HIPEC for the treatment of SBA. PATIENTS AND METHODS: Sixteen consecutive patients underwent CRS-HIPEC for small bowel malignancy between 2003 and 2016. Clinopathological and treatment-related factors were obtained from a prospective database...
October 2017: Anticancer Research
https://www.readbyqxmd.com/read/28790093/aggressive-large-cell-neuroendocrine-carcinoma-of-the-sigmoid-colon-in-a-patient-with-ulcerative-colitis
#13
Patrick Stoner, Taban Ghaffaripour, David Cohen
Colonic inflammation seen in inflammatory bowel disease (IBD) predisposes to the development of colorectal adenocarcinoma. In contrast, colorectal neuroendocrine carcinomas (NECs) have rarely been reported in the setting of IBD, and no definitive relationship between these tumours and IBD has been established. Dysplasia from chronic inflammation leading to neuroendocrine cell differentiation may be responsible for NEC development, though this finding has not been seen consistently. We present a case of large-cell neuroendocrine carcinoma of the sigmoid colon in a 65-year-old woman with long-standing ulcerative colitis...
August 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28717395/brain-imaging-before-primary-lung-cancer-resection-a-controversial-topic
#14
Zoe Hudson, Eveline Internullo, Anthony Edey, Isabel Laurence, Davide Bianchi, Alfredo Addeo
OBJECTIVE: International and national recommendations for brain imaging in patients planned to undergo potentially curative resection of non-small-cell lung cancer (NSCLC) are variably implemented throughout the United Kingdom [Hudson BJ, Crawford MB, and Curtin J et al (2015) Brain imaging in lung cancer patients without symptoms of brain metastases: a national survey of current practice in EnglandClin Radiol https://doi.org/10.1016/j.crad.2015.02.007]. However, the recommendations are not based on high-quality evidence and do not take into account cost implications and local resources...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28681242/the-potential-role-of-platelets-in-the-consensus-molecular-subtypes-of-colorectal-cancer
#15
REVIEW
Michael Lam, Jason Roszik, Preeti Kanikarla-Marie, Jennifer S Davis, Jeffrey Morris, Scott Kopetz, David G Menter
The consensus molecular subtypes (CMS) in colorectal cancer (CRC) represent distinct molecular subcategories of disease as reflected by comprehensive molecular profiling. The four CMS subtypes represent unique biology. CMS1 represents high immune infiltration. CMS2 demonstrates upregulation of canonical pathways such as WNT signaling. Widespread metabolic changes are seen in CMS3. CMS4 represents a mesenchymal phenotype with hallmark features including complement activation, matrix remodeling, angiogenesis, epithelial-mesechymal transition (EMT), integrin upregulation and stromal infiltration...
June 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28624559/hereditary-factors-are-unlikely-behind-unusual-pattern-of-early-onset-colorectal-cancer-in-egyptians-a-study-of-family-history-and-pathology-features-in-egyptians-with-large-bowel-cancer-cross-sectional-study
#16
Ahmed A Abou-Zeid, Wael A Jumuah, Essam F Ebied, Karim Sabry Abd El Samee Atia, Yasser El Ghamrini, Dina A Somaie
BACKGROUND: Colorectal cancer in Egypt has a higher incidence in young patients compared to western countries, where the disease is more prevalent in the old age group. This difference has been attributed to higher incidence of hereditary cancers in young Egyptian patients. The aim of this study is to compare the family history criteria and pathology features of tumors in young (≤40 years) and old (>40 years) Egyptian patients with adenocarcinoma of the colon and rectum. MATERIALS AND METHODS: This is the analysis of our prospectively collected data on the pathology features of tumors in 313 consecutive patients (133 young, 180 old) with colorectal cancer presenting to the Department of Surgery within an eight-year period...
August 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28617917/genomic-profiling-of-small-bowel-adenocarcinoma
#17
COMPARATIVE STUDY
Alexa B Schrock, Craig E Devoe, Robert McWilliams, James Sun, Thomas Aparicio, Philip J Stephens, Jeffrey S Ross, Richard Wilson, Vincent A Miller, Siraj M Ali, Michael J Overman
Importance: Small-bowel adenocarcinomas (SBAs) are rare cancers with a significantly lower incidence, later stage at diagnosis, and worse overall survival than other intestinal-derived cancers. To date, comprehensive genomic analysis of SBA is lacking. Objective: To perform in-depth genomic characterization of a large series of SBAs and other gastrointestinal tumors to draw comparisons and identify potentially clinically actionable alterations. Design, Setting, and Participants: Prospective analysis was performed of clinical samples from patients with SBA (n = 317), colorectal cancer (n = 6353), and gastric carcinoma (n = 889) collected between August 24, 2012, and February 3, 2016, using hybrid-capture-based genomic profiling, at the request of the individual treating physicians in the course of clinical care for the purpose of making therapy decisions...
November 1, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28530107/leptomeningeal-carcinomatosis-in-a-young-patient-with-obstructive-colorectal-signet-ring-cell-adenocarcinoma
#18
Alejandro Lusilla, Jorge de Tomás
We present the case report of a twenty-five-year-old Moroccan male patient who suffered from leptomeningeal carcinomatosis related to a signet-ring cell carcinoma of the rectum. He presented to the emergency department with abdominal pain, constipation, weight loss and rectal bleeding. The rectal examination showed a rectal tumor and a CT scan revealed a large bowel obstruction due to rectal diffuse thickening. An emergency transverse colostomy was performed, with a rectal biopsy and a cytological sample collection...
May 22, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28458844/long-tract-ileocolic-intussusception-due-to-mucinous-adenocarcinoma-of-the-ileocecal-valve-a-case-report-and-literature-review
#19
E H Gruenberger, M Hassan, I Kratzke
Intussusception in adults lacks specific symptoms and is often diagnosed emergently when they present with obstruction. Though intussusception certainly varies in size and location, the increased likelihood of ischemia or obstruction make large intussusceptions very rare in the literature. A patient admitted to our facility for small bowel obstruction was found to have extensive intussusception from the right lower quadrant to the splenic flexure, where a lead point was identified. Histopathology revealed multiple satellite lesions surrounding the lead point tumor, which was found to be invasive mucinous adenocarcinoma of the ileocecal valve...
March 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28252278/bifunctional-succinylated-%C3%AE%C2%B5-polylysine-coated-mesoporous-silica-nanoparticles-for-ph-responsive-and-intracellular-drug-delivery-targeting-the-colon
#20
Chau T H Nguyen, Richard I Webb, Lynette K Lambert, Ekaterina Strounina, Edward C Lee, Marie-Odile Parat, Michael A McGuckin, Amirali Popat, Peter J Cabot, Benjamin P Ross
Conventional oral drug formulations for colonic diseases require the administration of high doses of drug to achieve effective drug concentrations at the target site. However, this exposes patients to serious systemic toxicity in order to achieve efficacy. To overcome this problem, an oral drug delivery system was developed by loading a large amount (ca. 34% w/w) of prednisolone into 3-aminopropyl-functionalized mesoporous silica nanoparticles (MCM-NH2) and targeting prednisolone release to the colon by coating the nanoparticle with succinylated ε-polylysine (SPL)...
March 22, 2017: ACS Applied Materials & Interfaces
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