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Familial Adenomatous Polyposis

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https://www.readbyqxmd.com/read/27921062/long-qt-syndrome-and-duodenal-ampullary-adenoma-a-new-association
#1
F N U Asad-Ur-Rahman, Laura Hughes, Muhammad Talha Khan, Muhammad Khalid Hasan, Irteza Inayat
KCNQ1 gene mutation has a well-known association with long QT syndrome (LQTS). However, recent studies suggest that it may be implicated in intestinal neoplasia. We present a 27-year-old Hispanic man with a known history of LQTS secondary to KCNQ1 mutation, who presented with painless jaundice. Endoscopic retrograde pancreatic cholangiography revealed a prominent ampulla, with histology consistent with ampullary adenoma with high-grade dysplasia. Further endoscopic studies did not suggest familial adenomatous polyposis...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27913912/genetic-counselor-practices-involving-pediatric-patients-with-fap-an-investigation-of-their-self-reported-strategies-for-genetic-testing-and-hepatoblastoma-screening
#2
Caitlin E Lawson, Thomas M Attard, Hongying Dai, Seth Septer
Familial adenomatous polyposis (FAP) is a cancer predisposition syndrome that causes early-onset polyposis and is associated with an increased risk for hepatoblastoma. There is currently a lack of consensus on when to order APC (adenomatous polyposis coli) gene testing or implement surveillance for hepatoblastoma. An online questionnaire was completed by 62 genetic counselors to capture their current practices regarding these questions. Extracolonic findings associated with FAP that were most likely to prompt APC testing in an otherwise asymptomatic 10 year-old child with a negative family history were multiple desmoid tumors, congenital hypertrophy of the retinal pigment epithelium (CHRPE), jaw osteomas, and hepatoblastoma...
December 3, 2016: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/27911673/genetic-syndromes-associated-with-central-nervous-system-tumors
#3
Charmi Vijapura, Ehab Saad Aldin, Aristides A Capizzano, Bruno Policeni, Yutaka Sato, Toshio Moritani
Several genetic tumor syndromes have associated central nervous system (CNS) neoplasms. The spectrum of syndromes that have intracranial tumor manifestations includes ataxia telangiectasia, Cowden syndrome, familial adenomatous polyposis, hereditary non-polyposis-related colorectal cancer, Li-Fraumeni syndrome, Gorlin syndrome, neurofibromatosis types 1 and 2, multiple endocrine neoplasia type 1, tuberous sclerosis complex, von Hippel-Lindau disease, and Turcot syndrome. Many of these disorders are inherited in an autosomal dominant fashion, and identification of the associated genetic defects has led to improved understanding of the molecular pathways involved in tumorigenesis, helping pave the way to the emergence of molecularly targeted therapeutics...
December 2, 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27891388/desmoid-tumours-in-familial-adenomatous-polyposis-review-of-17-patients-from-a-portuguese-tertiary-center
#4
Marco Santos, Anabela Rocha, Vilma Martins, Marisa Santos
INTRODUCTION: Desmoid Tumours (DT) are benign tumours with an estimated incidence of 2-4 per million per year. Between 7-16% of them are associated with Familial Adenomatous Polyposis (FAP) and are mostly parietal or intra-abdominal. They are a challenge in relation to their unpredictable natural course, associated complications and difficult treatment. AIM: The aim of the present study was to review the occurrence, management and follow-up of DT on FAP patients treated consecutively at a tertiary care center...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27890852/adenocarcinoma-arising-from-an-end-ileostomy-in-a-patient-with-familial-adenomatous-polyposis-fap
#5
Justin T Huntington, Peter P Stanich, Alan E Harzman
No abstract text is available yet for this article.
November 24, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27882114/apc2-and-cyp1b1-methylation-changes-in-the-bone-marrow-of-acute-myeloid-leukemia-patients-during-chemotherapy
#6
Yongming Xia, Qingxiao Hong, Xiaoying Chen, Huadan Ye, Lili Fang, Annan Zhou, Yuting Gao, Danjie Jiang, Shiwei Duan
Aberrant promoter DNA methylation is a major mechanism of leukemogenesis in hematologic malignancies, including acute myeloid leukemia (AML). However, the association between promoter methylation with chemotherapeutic outcomes remains unknown. In the present study, bone marrow samples were collected prior to and following chemotherapy in 30 AML patients. Methylation-specific polymerase chain reaction technology was used to examine the promoter methylation status of adenomatous polyposis col 2 (APC2) and cytochrome P450 family 1 subfamily B polypeptide 1 (CYP1B1)...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27870147/management-strategies-in-lynch-syndrome-and-familial-adenomatous-polyposis-a-national-healthcare-survey-in-japan
#7
Tomoki Yamano, Michiko Hamanaka, Akihito Babaya, Kei Kimura, Masayoshi Kobayashi, Miki Fukumoto, Kiyoshi Tsukamoto, Masafumi Noda, Nagahide Matsubara, Naohiro Tomita, Kenichi Sugihara
Lynch syndrome (LS) and familial adenomatous polyposis (FAP) are major sources of hereditary colorectal cancer (CRC) and associated with other malignancies. There is some heterogeneity in management strategies in Japan. We performed a survey of management of hereditary CRC in hospitals that are members of the Japan Society of Colorectal Cancer Research (JSCCR). One hundred and ninety departments responded, of which 127 were from designated cancer care hospitals (DCCHs) according to the Japanese government. There were 25 488 operations for CRC in these departments in 2015...
November 21, 2016: Cancer Science
https://www.readbyqxmd.com/read/27855387/five-years-of-multidisciplinary-care-in-hereditary-cancer-our-experience-in-a-spanish-university-hospital
#8
I Márquez-Rodas, M Lobo, C Flores-Sanchez, M Sanz, S Luque, S Lizarraga, C González-Asanza, J A Pajares, M I Peligros, O Bueno, C Mata, C Lopez, S López-Tarruella, Y Jerez, A Muñoz-Martin, M Blanco, M Die-Trill, J P Justel, J Solera, M Martin
OBJECTIVE: To analyse the evolution of a multidisciplinary heredofamilial cancer unit (HFCU) in a university hospital. METHODS: This was a retrospective analysis of the activity of our HFCU in its first 5 years of existence. RESULTS: Between July 2010 and July 2015, 1,518 patients from 1,318 families attended our HFCU. Genetic testing was offered to 862 patients. Of those, 833 (96.6%) accepted testing, with available results for 636 (76.4%)...
November 18, 2016: Oncology
https://www.readbyqxmd.com/read/27844202/does-routine-colonoscopy-help-diagnose-familial-adenomatous-polyposis-in-patients-presenting-with-desmoid-tumors-but-no-gastrointestinal-symptoms
#9
Rumi Shin, Hwan-Seong Cho, Duck-Woo Kim, So Yeon Ahn, Myong Hoon Ihn, Hyo Jin Park, Heung-Kwon Oh, Sung-Bum Kang
PURPOSE: Desmoid tumor (DT) is a rare myofibroblastic proliferative neoplasm, but can occur in up to 26% of patients with familial adenomatous polyposis (FAP). Therefore, DT may be an extraintestinal manifestation of FAP that precedes the development of advanced malignancies. The aim of this study was to identify the incidence of polyps in DT patients and investigate value of colonoscopy for diagnosis of FAP in DT patients without gastrointestinal symptoms. MATERIALS AND METHODS: The records of patients diagnosed with DT were retrospectively reviewed using the clinical data warehouse (CDW) system...
November 14, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27833394/two-cases-of-adenocarcinoma-occurring-in-sporadic-fundic-gland-polyps-observed-by-magnifying-endoscopy-with-narrow-band-imaging
#10
Kazumi Togo, Tetsuya Ueo, Hirotoshi Yonemasu, Hideho Honda, Tetsuya Ishida, Hiroshi Tanabe, Kenshi Yao, Akinori Iwashita, Kazunari Murakami
Gastric fundic gland polyps (FGPs) are common non-adenomatous gastric polyps arising from normal fundic mucosa without Helicobacter pylori (H. pylori) infection. Although systemic FGPs associated with familial adenomatous polyposis (FAP) often have dysplasia, there are few reports of dysplasia occurring in sporadic FGPs, especially when detected by magnifying endoscopy with narrow band imaging (ME-NBI). We experienced two cases of adenocarcinoma occurring in sporadic FGPs, and their ME-NBI findings were very useful for differentiating FGP with cancer from non-dysplastic FGP...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27826806/uptake-of-prenatal-diagnostic-testing-for-retinoblastoma-compared-to-other-hereditary-cancer-syndromes-in-the-netherlands
#11
Charlotte J Dommering, Lidewij Henneman, Annemarie H van der Hout, Marianne A Jonker, Carli M J Tops, Ans M W van den Ouweland, Rob B van der Luijt, Arjen R Mensenkamp, Frans B L Hogervorst, Egbert J W Redeker, Christine E M de Die-Smulders, Annette C Moll, Hanne Meijers-Heijboer
Since the 1980s the genetic cause of many hereditary tumor syndromes has been elucidated. As a consequence, carriers of a deleterious mutation in these genes may opt for prenatal diagnoses (PND). We studied the uptake of prenatal diagnosis for five hereditary cancer syndromes in the Netherlands. Uptake for retinoblastoma (Rb) was compared with uptake for Von Hippel-Lindau disease (VHL), Li-Fraumeni syndrome (LFS), familial adenomatous polyposis (FAP), and hereditary breast ovarian cancer (HBOC). A questionnaire was completed by all nine DNA-diagnostic laboratories assessing the number of independent mutation-positive families identified from the start of diagnostic testing until May 2013, and the number of PNDs performed for these syndromes within these families...
November 8, 2016: Familial Cancer
https://www.readbyqxmd.com/read/27818810/familial-adenomatous-polyposis-manifesting-as-lactococcus-endocarditis-a-case-report-and-review-of-the-association-of-lactococcus-with-underlying-gastrointestinal-disease
#12
Taylor C Bazemore, Stacey A Maskarinec, Kahli Zietlow, Edward F Hendershot, John R Perfect
A 45-year-old male with a prosthetic aortic valve presented to the hospital with several months of generalized malaise. On admission, he was noted to have anemia of unclear etiology and subsequently became febrile with multiple blood cultures growing Lactococcus garvieae. Inpatient workup was concerning for infectious endocarditis (IE) secondary to Lactococcus. The patient was discharged home with appropriate antimicrobial therapy; however, he was readmitted for persistent, symptomatic anemia and underwent colonoscopy, which revealed innumerable colonic polyps consistent with Familial Adenomatous Polyposis (FAP) that was later confirmed with genetic testing...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27807061/familial-non-medullary-thyroid-cancer-unraveling-the-genetic-maze
#13
REVIEW
Samantha Peiling Yang, Joanne Ngeow
Familial non-medullary thyroid cancer (FNMTC) constitutes 3-9% of all thyroid cancers. Out of all FNMTC cases, only 5% in the syndromic form has well-studied driver germline mutations. These associated syndromes include Cowden syndrome, familial adenomatous polyposis, Gardner syndrome, Carney complex type 1, Werner syndrome and DICER1 syndrome. It is important for the clinician to recognize these phenotypes so that genetic counseling and testing can be initiated to enable surveillance for associated malignancies and genetic testing of family members...
December 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27783336/attenuated-polyposis-of-the-large-bowel-a-morphologic-and-molecular-approach
#14
Maurizio Ponz de Leon, Monica Pedroni, Luca Roncucci, Federica Domati, Giuseppina Rossi, Giulia Magnani, Annalisa Pezzi, Rossella Fante, Luca Reggiani Bonetti
Attenuated polyposis could be defined as a variant of familial adenomatous polyposis (FAP) in which synchronous polyps of the large bowel range between 10 and 99. We analysed all cases of attenuated polyposis observed over the last 30 years with the objectives: (A) to classify the disease according to different type and proportion of polyps; (B) To ascertain the contribution of APC and MutYH genes; (C) to discover features which could arise the suspicion of mutations; (D) To obtain indications for management and follow-up...
October 25, 2016: Familial Cancer
https://www.readbyqxmd.com/read/27781259/-research-progress-of-serrated-polyposis-syndrome
#15
Shihao Dong, Jingsong Chen
Serrated polyposis syndrome (SPS) is closely associated with the initiation and development of colorectal cancer (CRC), however, there is few research on SPS in China. Serrated polyps can be divided into hyperplastic polyps, sessile serrated polyps and traditional serrated polyps. The diagnosis standard of SPS is as following: (1) There are at least 5 serrated lesions in proximal colon, and diameter of more than 2 lesions is >10 mm; (2) The patient has one serrated polyp with family history of SPS; (3) More than 20 serrated polyps can be found in the entire large bowel...
October 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27777714/giant-adrenal-cavernous-hemangioma-in-a-patient-with-familial-adenomatous-polyposis
#16
Dhouha Bacha, Abir Chaabane, Fatma Khanche, Saloua Néchi, Hassen Touinsi, Emna Chelbi
Adrenal hemangioma is an uncommon benign vascular tumor that is often discovered incidentally. It has never been reported in association with familial adenomatous polyposis. We report a case of a 60-year old man with a history of familial adenomatous polyposis, in whom a huge retroperitoneal cyst of 18x17 cm was discovered during routine radiologic evaluation. Because of the impossibility of ruling out the presence of malignancy, surgical cystectomy was performed, associated to a scheduled total colectomy. Pathological examination revealed that the cyst corresponded to an adrenal cavernous hemangioma...
August 8, 2016: Clinics and Practice
https://www.readbyqxmd.com/read/27777639/differences-in-neuropsychological-and-behavioral-parameters-and-brain-structure-in-patients-with-familial-adenomatous-polyposis-a-sibling-paired-study
#17
Ana Sánchez Azofra, Trilokesh D Kidambi, Rita J Jeremy, Peggy Conrad, Amie Blanco, Megan Myers, James Barkovich, Jonathan P Terdiman
BACKGROUND: Familial adenomatous polyposis (FAP) is an autosomal dominant hereditary colon cancer syndrome caused by mutations in adenomatous polyposis coli (APC) with both colonic and extra-colonic manifestations. Case reports have noted an association with FAP and intellectual disability and animal studies have shown that APC is implicated in neural development and function, but no studies have investigated neuropsychological, behavioral, or structural brain characteristics of patients with FAP...
2016: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/27770209/current-status-of-prophylactic-surgical-treatment-for-familial-adenomatous-polyposis-in-japan
#18
Masato Yamadera, Hideki Ueno, Hirotoshi Kobayashi, Tsuyoshi Konishi, Fumio Ishida, Tatsuro Yamaguchi, Takao Hinoi, Yasuhiro Inoue, Yukihide Kanemitsu, Naohiro Tomita, Hideyuki Ishida, Kenichi Sugihara
PURPOSE: We conducted this study to clarify the current clinical practice of prophylactic colectomy for patients with familial adenomatous polyposis (FAP) in Japan. METHODS: This retrospective multi-center cohort study involved 23 specialized institutions for colorectal disease in Japan. We analyzed the records of 147 patients who underwent prophylactic surgical treatment between 2000 and 2012. Patients were divided into Group 1 (2000-2006) and Group 2 (2007-2012) based on their date of surgery...
October 21, 2016: Surgery Today
https://www.readbyqxmd.com/read/27768599/a-role-for-the-vitamin-d-pathway-in-non-intestinal-lesions-in-genetic-and-carcinogen-models-of-colorectal-cancer-and-in-familial-adenomatous-polyposis
#19
Yong-Sik Bong, Shahin Assefnia, Therese Tuohy, Deborah W Neklason, Randall W Burt, Jaeil Ahn, Hao-Wen J Jiang, Stephen W Byers
Vitamin D is implicated in the etiology of cancers of the gastrointestinal tract, usually characterized by alteration in the APC/β-catenin/TCF tumor suppressor pathway. The vitamin D receptor (VDR) is also implicated in cardiovascular and skin diseases as well as in immunity. Activated VDR can indirectly alter β-catenin nuclear localization and directly suppress β-catenin/TCF mediated transcriptional activity. We treated VDR null mice with the carcinogen azoxymethane (AOM) and generated mice bearing a mutated APC (hypomorph) on a VDR null background (Apc1638N/+Vdr-/-)...
October 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27767239/morphology-and-genetics-of-pyloric-gland-adenomas-in-familial-adenomatous-polyposis
#20
Wenzel M Hackeng, Elizabeth A Montgomery, Francis M Giardiello, Aatur D Singhi, Marija Debeljak, James R Eshleman, Michael Vieth, G Johan A Offerhaus, Laura D Wood, Lodewijk A A Brosens
BACKGROUND: Gastric pyloric gland adenomas (PGAs) are rare epithelial polyps that are more commonly found in autoimmune atrophic gastritis and familial adenomatous polyposis. Little is known about the morphology and genetics of PGAs in familial adenomatous polyposis. AIMS: PGAs in familial adenomatous polyposis are studied morphologically and genetically. Findings in FAP associated PGAs are compared to sporadic PGAs and related lesions such as oxyntic gland adenoma (OGA) to increase our understanding of these rare polyps...
October 21, 2016: Histopathology
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