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Familial Adenomatous Polyposis

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https://www.readbyqxmd.com/read/29773837/microbial-networking-in-cancer-when-two-toxins-collide
#1
EDITORIAL
Sarah Tomkovich, Christian Jobin
A recent study by Dejea et al. has demonstrated that two enterotoxigenic bacteria frequently associated with sporadic colorectal cancer, Bacteroides fragilis and pks+ Escherichia coli, are found together in biofilms on tissue from patients with familial adenomatous polyposis. In preclinical mouse models, these two bacteria and their corresponding toxins work synergistically to promote colon cancer.
May 18, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29771800/left-sided-dominance-of-early-onset-colorectal-cancers-a-rationale-for-screening-flexible-sigmoidoscopy-in-the-young
#2
Lior Segev, Matthew F Kalady, James M Church
BACKGROUND: National databases show a recent significant increase in the incidence of colorectal cancer in people younger than 50. With current recommendations to begin average-risk screening at age 50, these patients do not have the opportunity to be screened. We hypothesized that most of the cancers among the young would be left sided, which would create an opportunity for screening the young by flexible sigmoidoscopy. OBJECTIVE: This study aims to analyze the anatomic distribution of sporadic colorectal cancers in patients under the age of 50...
May 15, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29768363/ex-vivo-resection-and-intestinal-autotransplantation-for-a-large-mesenteric-desmoid-tumor-secondary-to-familial-adenomatous-polyposis-a-case-report-and-literature-review
#3
Chao Cheng, Shuang Guo, Dakinah Eastman G B Kollie, Wanli Zhang, Jun Xiao, Jun Liu, Xiaoming Lu, Yong Xiao
RATIONALE: The mesenteric desmoid tumor requires special attention and the most demanding treatment. PATIENT CONCERNS: Here we present a rare case of a large mesenteric desmoid tumor secondary to familial adenomatous polyposis (FAP) in a 34-year-old man accepted the ex vivo resection, and intestinal autotransplantation. DIAGNOSES: A 34-year-old man was referred to our department with a 6-year history of intermittent hematochezia without any other discomfort after undergoing partial colectomy in February 2013, and 5 endoscopic mucosal resections of colon polyps between May 2012 and July 2015 due to pathological diagnosis of FAP...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29751773/an-unusual-finding-in-a-desmoid-type-fibromatosis-of-the-pancreas-a-case-report-and-review-of-the-literature
#4
Joseph Clarence Torres, Chen Xin
BACKGROUND: Desmoid-type fibromatoses are rare benign and fibrous tumors that account for approximately 0.03% of total neoplasms. Within this category of neoplasms, pancreatic desmoid-type fibromatosis is an extremely rare subgroup, accounting for approximately 5% of desmoid-type fibromatoses. Although the etiology is unknown, some risk factors include trauma, surgery, family history of desmoid tumor, pregnancy, use of contraceptives, genetic mutation, and familial adenomatous polyposis or Gardner syndrome...
May 12, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29736107/sigmoid-colon-perforation-mimics-a-tuboovarian-absces
#5
Cemile Dayangan Sayan, Mahmut Ilkin Yeral, Zehra Sema Ozkan, Gokhan Karaca, Nese Asal, Oktay Aydın, Nevin Sagsoz
Introduction: An adnexal mass may be diagnosed after a routine pelvic ultrasonographic examination or an emergent hospital admission due to rupture of ectopic pregnancy, adnexal torsion or rupture of tuboovarian abscess. It is necessary to evaluate the origin of the mass initially and to classify patients who need further evaluation and treatment for an urgent condition. Case presentation: We report a case of sigmoid colon rupture due to sigmoid colon adenocarcinoma presenting as acute abdomen with left adnexal mass in a 28 years old woman...
April 2018: Medical Archives
https://www.readbyqxmd.com/read/29720902/translational-research-in-familial-colorectal-cancer-syndromes
#6
REVIEW
Molly M Ford
Growing knowledge of inherited colorectal cancer syndromes has led to better surveillance and better care of this subset of patients. The most well-known entities, including Lynch syndrome and familial adenomatous polyposis, are continually being studied and with the advent of more sophisticated genetic testing, additional genetic discoveries have been made in the field of inherited cancer. This article will summarize many of the updates to both the familiar and perhaps less familiar syndromes that can lead to inherited or early-onset colorectal cancer...
May 2018: Clinics in Colon and Rectal Surgery
https://www.readbyqxmd.com/read/29719120/hepatoblastoma-in-patients-with-molecularly-proven-familial-adenomatous-polyposis-clinical-characteristics-and-rationale-for-surveillance-screening
#7
REVIEW
Angela D Trobaugh-Lotrario, Dolores López-Terrada, Peng Li, James H Feusner
Familial adenomatous polyposis (FAP) due to APC mutation is associated with an increased risk of hepatoblastoma. All cases of hepatoblastoma in patients with FAP reported in the literature were reviewed. One hundred and nine patients were identified. Thirty-five patients (of 49 with data) were diagnosed with hepatoblastoma prior to a later diagnosis of FAP (often in association with advanced colorectal carcinoma), emphasizing a need to identify patients earlier with germline APC mutations for early colorectal carcinoma screening...
May 2, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29713679/risk-factors-for-advanced-duodenal-and-ampullary-adenomatosis-in-familial-adenomatous-polyposis-a-prospective-single-center-study
#8
M Sulbaran, F G Campos, U Ribeiro, H S Kishi, P Sakai, E G H de Moura, L Bustamante-López, M Tomitão, S C Nahas, I Cecconello, A V Safatle-Ribeiro
Background and study aims:  To determine the clinical features associated with advanced duodenal and ampullary adenomas in familial adenomatous polyposis. Secondarily, we describe the prevalence and clinical significance of jejunal polyposis. Patients and methods:  This is a single center, prospective study of 62 patients with familial adenomatous polyposis. Duodenal polyposis was classified according to Spigelman and ampullary adenomas were identified. Patients with Spigelman III and IV duodenal polyposis underwent balloon assisted enteroscopy...
May 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29710228/immune-profiling-of-premalignant-lesions-in-patients-with-lynch-syndrome
#9
Kyle Chang, Melissa W Taggart, Laura Reyes-Uribe, Ester Borras, Erick Riquelme, Reagan M Barnett, Guido Leoni, F Anthony San Lucas, Maria T Catanese, Federica Mori, Maria G Diodoro, Y Nancy You, Ernest T Hawk, Jason Roszik, Paul Scheet, Scott Kopetz, Alfredo Nicosia, Elisa Scarselli, Patrick M Lynch, Florencia McAllister, Eduardo Vilar
Importance: Colorectal carcinomas in patients with Lynch syndrome (LS) arise in a background of mismatch repair (MMR) deficiency, display a unique immune profile with upregulation of immune checkpoints, and response to immunotherapy. However, there is still a gap in understanding the pathogenesis of MMR-deficient colorectal premalignant lesions, which is essential for the development of novel preventive strategies for LS. Objective: To characterize the immune profile of premalignant lesions from a cohort of patients with LS...
April 16, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29702101/the-impact-of-chromoendoscopy-for-surveillance-of-the-duodenum-in-patients-with-mutyh-associated-polyposis-and-familial-adenomatous-polyposis
#10
Joanna J Hurley, Laura E Thomas, Sarah-Jane Walton, Siwan Thomas-Gibson, Adam Haycock, Noriko Suzuki, Matthew Mort, Geraint Williams, Meleri Morgan, Susan K Clark, Julian R Sampson, Sunil Dolwani
BACKGROUND AND AIMS: Duodenal polyposis and cancer have become a key issue for patients with familial adenomatous polyposis (FAP) and MUTYH-associated polyposis (MAP). Almost all patients with FAP will develop duodenal adenomas, with 5% developing cancer. The incidence of duodenal adenomas in MAP appears to be lower than in FAP but the limited available data suggest a comparable increase in the relative risk and lifetime risk of duodenal cancer. Current surveillance recommendations, however, are the same for FAP and MAP, using the Spigelman score--incorporating polyp number, size, dysplasia, and histology--for risk stratification and determination of surveillance intervals...
April 24, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29696324/cribriform-morular-variant-of-papillary-thyroid-carcinoma-clinical-and-pathological-features-of-30-cases
#11
Junko Akaishi, Tetsuo Kondo, Kiminori Sugino, Yuna Ogimi, Chie Masaki, Kiyomi Y Hames, Tomonori Yabuta, Chisato Tomoda, Akifumi Suzuki, Kenichi Matsuzu, Takashi Uruno, Keiko Ohkuwa, Wataru Kitagawa, Mitsuji Nagahama, Ryohei Katoh, Koichi Ito
BACKGROUND: Cribriform-morular variant of papillary thyroid carcinoma (CMV-PTC) is rare; it may occur in cases of familial adenomatous polyposis (FAP) or be sporadic. To clarify the clinicopathological features of CMV-PTC, the medical records of these patients were investigated retrospectively. MATERIALS AND METHODS: Between 1979 and 2016, a total of 17,062 cases with PTC underwent initial surgery at Ito Hospital. Of these, 30 (0.2%) cases histologically diagnosed with CMV-PTC were reviewed...
April 25, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29688472/management-of-pouchitis-and-other-common-complications-of-the-pouch
#12
Robin L Dalal, Bo Shen, David A Schwartz
Restorative proctocolectomy with ileal pouch-anal anastomosis (IPAA) has become the preferred surgical treatment for refractory or complicated ulcerative colitis (UC) and familial adenomatous polyposis (FAP). Pouchitis is the most common complication of this procedure and can occur in about 50% of patients. Treatment of pouchitis depends on the phenotype of disease. Pouchitis can be classified as acute, chronic/refractory, or secondary pouchitis, which includes pouchitis occurring due to Crohn's disease (CD)...
April 23, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29671617/oxazole-and-thiazole-analogs-of-sulindac-for-cancer-prevention
#13
Bini Mathew, Judith V Hobrath, Michele C Connelly, R Kiplin Guy, Robert C Reynolds
AIM: Experimental and epidemiological studies and clinical trials suggest that nonsteroidal anti-inflammatory drugs possess antitumor potential. Sulindac, a widely used nonsteroidal anti-inflammatory drug, can prevent adenomatous colorectal polyps and colon cancer, especially in patients with familial adenomatous polyposis. Sulindac sulfide amide (SSA) is an amide-linked sulindac sulfide analog that showed in vivo antitumor activity in a human colon tumor xenograft model. Results/methodology: A new analog series with heterocyclic rings such as oxazole or thiazole at the C-2 position of sulindac was prepared and screened against prostate, colon and breast cancer cell lines to probe the effect of these novel substitutions on the activity of sulindac analogs...
April 19, 2018: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29663106/prevalence-of-thyroid-diseases-in-familial-adenomatous-polyposis-a-systematic-review-and-meta-analysis
#14
Jirat Chenbhanich, Amporn Atsawarungruangkit, Sira Korpaisarn, Tanit Phupitakphol, Soravis Osataphan, Prasit Phowthongkum
Thyroid cancer (TC) is a known extra-intestinal manifestation and contributes to the mortality and morbidity in patients with familial adenomatous polyposis (FAP). Its exact prevalence is not well established and recent studies have shown an increasing number of TC in this patient population. The prevalence of benign thyroid masses and endocrinologic thyroid disorders are also poorly described. We conducted a systematic review and meta-analysis by using a random-effects model to characterize TC and estimated the prevalence of thyroid diseases in FAP patients...
April 16, 2018: Familial Cancer
https://www.readbyqxmd.com/read/29650924/-endoscopy-assisted-partial-duodenal-resection-for-duodenal-adenoma-in-a-patient-with-familial-adenomatous-polyposis
#15
Tomoaki Hirashima, Shinobu Ohnuma, Hideaki Karasawa, Kazuhiro Watanabe, Hirofumi Imoto, Takeshi Aoki, Katsuyoshi Kudoh, Naoki Tanaka, Munenori Nagao, Hiroaki Musha, Fuyuhiko Motoi, Takashi Kamei, Takeshi Naitoh, Michiaki Unno
We here report a case of endoscopy-assisted partial duodenal resection for duodenal adenoma in a patient with familial adenomatous polyposis(FAP). A male underwent total proctocolectomy with ileal pouch anal anastomosis in 1997. Since 2004, duodenal adenomas occurred and the atypical grade of adenoma was gradually aggravated. Therefore, he underwent endoscopy-assisted partial duodenal resection in 2013. The pathological finding of the specimen showed well-differentiated tubular adenocarcinoma(pM, ly0, v0). No recurrence has been observed at 4 years after the operation...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29643736/desmoid-fibromatosis-of-the-lower-abdominal-wall-in-irrua-nigeria
#16
Oluwafemi Olasupo Awe, Sylvester Eluehike
Desmoid fibromatosis (desmoid tumors) is rare tumors. It can occur as intra-abdominal, extraabdominal, or abdominal wall tumor depending on the site. The abdominal wall type is usually sporadic, but few have been associated with familial adenomatous polyposis. They are commonly seen in young females who are pregnant with a history of the previous cesarean section scar or within the 1st year of the last childbirth. There is an association between this tumor, presence of estrogen receptors, and abdominal trauma...
January 2018: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/29627492/gastric-adenomas-in-familial-adenomatous-polyposis-you-only-see-them-when-you-know-what-to-look-for
#17
Victorine H Roos, Barbara A J Bastiaansen, Evelien Dekker
No abstract text is available yet for this article.
April 5, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29627174/short-term-outcomes-in-children-undergoing-restorative-proctocolectomy-with-ileal-pouch-anal-anastomosis
#18
Katerina Dukleska, Loren Berman, Allison A Aka, Charles D Vinocur, Erin A Teeple
INTRODUCTION: Patients with familial adenomatous polyposis (FAP) and ulcerative colitis (UC) commonly undergo restorative proctocolectomy with ileal-pouch anal anastomosis (RP-IPAA). We sought to describe patient characteristics and postoperative outcomes in this patient population. METHODS: Using the National Surgical Quality Improvement Program-Pediatric Participant Use Files from 2012 to 2015, children who were 6-18years old who underwent RP-IPAA for FAP or UC were identified...
March 7, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29624892/antibiotic-mediated-bacteriome-depletion-in-apc-min-mice-is-associated-with-reduction-in-mucus-producing-goblet-cells-and-increased-colorectal-cancer-progression
#19
Kamaljeet Kaur, Arpit Saxena, Irina Debnath, Jacqueline L O'Brien, Nadim J Ajami, Thomas A Auchtung, Joseph F Petrosino, Alexander-Jacques Sougiannis, Sarah Depaep, Alexander Chumanevich, Phani M Gummadidala, Mayomi H Omebeyinje, Sourav Banerjee, Ioulia Chatzistamou, Paramita Chakraborty, Raja Fayad, Franklin G Berger, James A Carson, Anindya Chanda
Recent epidemiological evidence suggests that exposure to antibiotics in early-to-middle adulthood is associated with an increased risk of colorectal adenoma. However, mechanistic studies in established preclinical cancer to examine these claims are extremely limited. Therefore, we investigated the effect of long-term exposure of an antibiotic cocktail composed of Vancomycin, Neomycin, and Streptomycin, on tumor development and progression in the ApcMin/+ mouse, an established genetic model for familial adenomatous polyposis...
April 6, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29617376/brain-tumor-promotes-axon-growth-across-the-midline-through-interactions-with-the-microtubule-stabilizing-protein-apc2
#20
Elise Arbeille, Greg J Bashaw
Commissural axons must cross the midline to establish reciprocal connections between the two sides of the body. This process is highly conserved between invertebrates and vertebrates and depends on guidance cues and their receptors to instruct axon trajectories. The DCC family receptor Frazzled (Fra) signals chemoattraction and promotes midline crossing in response to its ligand Netrin. However, in Netrin or fra mutants, the loss of crossing is incomplete, suggesting the existence of additional pathways. Here, we identify Brain Tumor (Brat), a tripartite motif protein, as a new regulator of midline crossing in the Drosophila CNS...
April 2018: PLoS Genetics
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