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https://www.readbyqxmd.com/read/28100999/colorectal-cancer-associated-with-streptococcus-anginosus-bacteremia-and-liver-abscesses
#1
Umair Masood, Anuj Sharma, Dhruv Lowe, Rashad Khan, Divey Manocha
Streptococcus anginosus is part of the normal flora of the human gastrointestinal tract. Their ability to cause abscesses is very unique and sets them apart from the rest of the streptococci groups. While an association of group D streptococcus bacteremia and endocarditis with colorectal carcinoma is well established, S. anginosus infections are rarely implicated with colonic malignancy. We present a case of a 62-year-old male who presented to the hospital with fatigue and generalized abdominal pain. Computed tomography of the abdomen revealed multiple liver abscesses and rectal thickening...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28095874/clinicopathological-study-of-9-cases-of-prostate-cancer-involving-the-rectal-wall
#2
Tao Tang, Zhengduo Yang, Dan Zhang, Jie Qu, Guang Liu, Shiwu Zhang
BACKGROUND: Prostate cancer involving the rectal wall is rare and may lead to diagnostic pitfalls. CASE PRESENTATION: Out of 9504 patients with rectal tumors between January 2003 and January 2015, 9 patients (elderly with a mean age of 74 years) with prostate cancer involving the rectal wall were clinically misdiagnosed with rectal cancer. The lesions were located in the rectum, and included 3 circumferential rectal masses, 1 ulceration lesion, 1 crater-like mass, and 4 protruding lesions...
January 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28078433/a-meta-analysis-of-the-clinicopathological-characteristics-and-survival-outcomes-of-inflammatory-bowel-disease-associated-colorectal-cancer
#3
REVIEW
Ian S Reynolds, Aobhlinn O'Toole, Joseph Deasy, Deborah A McNamara, John P Burke
PURPOSE: The current study aims to use meta-analytical techniques to compare the clinicopathological characteristics and survival outcomes of inflammatory bowel disease (IBD) associated and sporadic colorectal carcinoma (CRC). Patients with IBD have an established increased risk of developing CRC. There is no consensus, however, on the clinicopathological characteristics and survival outcomes of IBD associated CRC when compared to sporadic CRC. METHODS: A comprehensive search for published studies comparing IBD associated and sporadic CRC was performed...
January 11, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28078113/results-of-intraoperative-electron-beam-radiotherapy-containing-multimodality-treatment-for-locally-unresectable-t4-rectal-cancer-a-pooled-analysis-of-the-mayo-clinic-rochester-and-catharina-hospital-eindhoven
#4
Fabian A Holman, Michael G Haddock, Leonard L Gunderson, Miranda Kusters, Grard A P Nieuwenhuijzen, Hetty A van den Berg, Heidi Nelson, Harm J T Rutten
BACKGROUND: The aim of this study is to analyse the pooled results of intraoperative electron beam radiotherapy (IOERT) containing multimodality treatment of locally advanced T4 rectal cancer, initially unresectable for cure, from the Mayo Clinic, Rochester, USA (MCR) and Catharina Hospital, Eindhoven, The Netherlands (CHE), both major referral centers for locally advanced rectal cancer. A rectal tumor is called locally unresectable for cure if after full clinical work-up infiltration into the surrounding structures or organs has been demonstrated, which would result in positive surgical margins if resection was the initial component of treatment...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28074721/-capecitabine-induced-ventricular-fibrillation
#5
A V van Capelle, J de Valk, D Schakenraad, T Germans, D Ten Oever
BACKGROUND: Capecitabine is an orally-administered chemotherapeutic agent used in the treatment of colorectal, gastric and breast carcinoma. Capecitabine has relatively mild side effects. Less known are its potential severe cardiotoxic effects. CASE DESCRIPTION: We report a case of a 61-year-old man recently diagnosed with rectal cancer. Six days after starting with capecitabine, he developed a cardiac arrest due to ventricular fibrillation (VF). Extensive additional diagnostics did not explain the cardiac arrest nor VF...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28072710/metastatic-renal-clear-cell-carcinoma-to-the-rectum-lungs-ilium-and-lymph-nodes-a-case-report
#6
Guoyang Zheng, Hanzhong Li, Ji Li, Xuebin Zhang, Yushi Zhang, Xingcheng Wu
BACKGROUND: Renal cell carcinoma metastasizing to rectum is very rare, and the unusual metastatic sites should be paid attention to during the follow-up of renal cell carcinoma. CASE SUMMARY: We describe a case of a 65-year-old male who was diagnosed with metastatic renal cell carcinoma to rectum 10 years after the right radical nephrectomy. Histopathology and immunohistochemical examinations contribute to making differential diagnosis between rectal metastasis of renal cell carcinoma and primary rectal clear cell carcinoma...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28061442/genetic-variants-in-the-tgf%C3%AE-signaling-pathway-influence-expression-of-mirnas-in-colon-and-rectal-normal-mucosa-and-tumor-tissue
#7
Martha L Slattery, Andromahi Trivellas, Andrew J Pellatt, Lila E Mullany, John R Stevens, Roger K Wolff, Jennifer S Herrick
The TGF-β signaling pathway is involved in regulation of cell growth, angiogenesis, and metastasis. We test the hypothesis that genetic variation in the TGF-β signaling pathway alters miRNA expression.We use data from 1188 colorectal cancer cases to evaluate associations between 80 SNPs in 21 genes.Seven variants eIF4E rs12498533, NFκB1 rs230510, TGFB1 rs4803455, TGFBR1 rs1571590 and rs6478974, SMAD3 rs3743343, and RUNX1 rs8134179 were associated with expression level of miRNAs in normal colorectal mucosa...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28058078/extramammary-paget-s-disease-of-anal-canal-associated-with-rectal-adenoma-without-invasive-carcinoma
#8
Vaibhav Chumbalkar, Timothy A Jennings, Sanaz Ainechi, Edward C Lee, Hwajeong Lee
Extramammary Paget's disease (EMPD) is a rare disease which is found in apocrine-rich locations such as anogenital region, axilla and rarely in other sites. Perianal EMPD is often reported as the involvement of perianal skin, but involvement of anal mucosa is very rare. Based on pathogenesis and association with either synchronous or metachronous malignancy, EMPD can be divided into primary and secondary types. Treatment approach for these two types of Paget's disease and their prognosis is different, thus it is important to make the distinction...
December 2016: Gastroenterology Research
https://www.readbyqxmd.com/read/28053552/diet-and-lifestyle-factors-associated-with-mirna-expression-in-colorectal-tissue
#9
Martha L Slattery, Jennifer S Herrick, Lila E Mullany, John R Stevens, Roger K Wolff
MicroRNAs (miRNAs) are small non-protein-coding RNA molecules that regulate gene expression. Diet and lifestyle factors have been hypothesized to be involved in the regulation of miRNA expression. In this study it was hypothesized that diet and lifestyle factors are associated with miRNA expression. Data from 1,447 cases of colorectal cancer to evaluate 34 diet and lifestyle variables using miRNA expression in normal colorectal mucosa as well as for differential expression between paired carcinoma and normal tissue were used...
2017: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/28047842/su-f-t-420-dosimetry-comparison-of-advanced-external-beam-radiation-treatment-modalities-to-brachytherapy-treatments-in-patients-with-cervical-cancer
#10
U Mwidu, S Devic, M Shehadeh, M AlKafi, R Mahmood, B Moftah
PURPOSE: A retrospective comparison of dose distributions achievable by High dose rate brachytherapy (HDRBT), Helical TomoTherapy (TOMO), CyberKnife (CK) and RapidArc (RA) in locally advanced inoperable cervical cancer patients is presented. METHODS: Five patients with advanced stage cervical carcinoma were selected for this study after a full course of external beam radiotherapy (EBRT), chemotherapy and HDR Brachytherapy. To highlight any significant similarities/differences in dose distributions, high-risk clinical target volume (HRCTV) coverage, organs at risk (OAR) sparing, and machine specific delivery limitations, we used D90 (dose received by 90% of the volume) as the parameter for HRCTV coverage as recommended by the GEC-ESTRO Working Group...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046961/su-f-t-669-commissioning-of-an-electronic-brachytherapy-system-for-targeted-mouse-irradiation
#11
W Culberson, E Carchman, J Micka
PURPOSE: The aim of this study was to commission the Xoft Axxent™ electronic brachytherapy (eBT) source and 10 mm diameter surface applicator with NIST traceability for targeted irradiations of mouse anal carcinomas. METHODS: The Xoft Axxent™ electronic brachytherapy (eBT) and 10 mm diameter surface applicator was chosen by the collaborating physician as a radiation delivery mechanism for mouse anal carcinomas. The target dose was 2 Gy at a depth of 3 mm in tissue to be delivered in a single fraction...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28035252/signet-ring-colorectal-carcinoma-do-we-need-to-improve-the-treatment-algorithm
#12
Anup Sunil Tamhankar, Parag Ingle, Reena Engineer, Munita Bal, Vikas Ostwal, Avanish Saklani
AIM: To elaborate about this peculiar variant from a tertiary cancer center from India. METHODS: It's a retrospective study (2011-2014) of all patients diagnosed with signet ring colo-rectal cancer (SRCC). Various clinico-pathological variables were studied. RESULTS: One hundred and seventy consecutive patients with SRCC were diagnosed (11.4% of all colorectal cancers). Median Age of the cohort was 41 years. Most common location was recto-sigmoid area (54...
December 15, 2016: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28029590/a-new-short-daily-brachytherapy-schedule-in-postoperative-endometrial-carcinoma-preliminary-results
#13
Ángeles Rovirosa, Carlos Ascaso, Antonio Herreros, Joan Sánchez, Katarzyna Holub, Albert Camarasa, Sebastià Sabater, Gabriela Oses, Julia García-Miguel, Yamile Rivera, Meritxell Arenas
PURPOSE: To evaluate the preliminary results of vaginal-cuff relapses (VCR) and complications of a short brachytherapy (BT) schedule in postoperative endometrial carcinoma. METHODS AND MATERIALS: From September 2011 to December 2014, 102 patients were treated with postoperative BT for endometrial carcinoma. Seventy-four patients received a single 7 Gy dose after external beam irradiation (Group 1), and 28 intermediate-risk patients received three daily fractions of 6 Gy (Group 2)...
October 28, 2016: Brachytherapy
https://www.readbyqxmd.com/read/28027077/rectal-carcinoma-model-a-novel-simulation-in-pathology-training
#14
Ananya Pongpaibul, Prattana Chiravirakul, Piyawadee Leksrisakul, Phadungsak Silakorn, Wangcha Chumtap, Somchai Chongpipatchaipron, Peerasak Jaitrong, Ekachai Jitvichai
INTRODUCTION: Until now, the apprenticeship training model is used to train pathology residents. Pathology residents are trained using patient specimens that are received during the course of normal daily pathology service. However, this training method could result in inconsistency in knowledge and experience among trainees because of variation in specimens that are received for analysis. The use of simulated specimens in pathology residency training could help ensure that all pathology residents receive consistent knowledge and experience...
December 23, 2016: Simulation in Healthcare: Journal of the Society for Simulation in Healthcare
https://www.readbyqxmd.com/read/28018861/tissue-associated-bacterial-alterations-in-rectal-carcinoma-patients-revealed-by-16s-rrna-community-profiling
#15
Andrew M Thomas, Eliane C Jesus, Ademar Lopes, Samuel Aguiar, Maria D Begnami, Rafael M Rocha, Paola Avelar Carpinetti, Anamaria A Camargo, Christian Hoffmann, Helano C Freitas, Israel T Silva, Diana N Nunes, João C Setubal, Emmanuel Dias-Neto
Sporadic and inflammatory forms of colorectal cancer (CRC) account for more than 80% of cases. Recent publications have shown mechanistic evidence for the involvement of gut bacteria in the development of both CRC-forms. Whereas, colon and rectal cancer have been routinely studied together as CRC, increasing evidence show these to be distinct diseases. Also, the common use of fecal samples to study microbial communities may reflect disease state but possibly not the tumor microenvironment. We performed this study to evaluate differences in bacterial communities found in tissue samples of 18 rectal-cancer subjects when compared to 18 non-cancer controls...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28008773/radiotherapy-response-evaluation-using-fdg-pet-ct-established-and-emerging-applications
#16
Helen Cliffe, Chirag Patel, Robin Prestwich, Andrew Scarsbrook
Radiation therapy is a common component of curative cancer treatment. However, there is a significant incidence of treatment failure. In these cases salvage surgical options are sometimes appropriate. Accurate assessment of response and early recognition of treatment success or failure is therefore critical to guide treatment decisions and impacts on survival and the morbidity of treatment. Traditionally, treatment response has depended upon anatomical measurement of disease. However, this may not correlate well with the presence of disease, especially after radiotherapy...
December 23, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/28008455/perfusion-ct-measurements-predict-tumor-response-in-rectal-carcinoma
#17
Aya Kino, Jenny Shaffer, Katherine E Maturen, Heiko Schmiedeskamp, Albert C Koong, Daniel T Chang, Dominik Fleischmann, Aya Kamaya
PURPOSE: To evaluate the capacity of perfusion CT imaging to distinguish between complete and incomplete responders after neoadjuvant chemoradiation therapy for rectal carcinoma, with particular attention to segmentation technique. MATERIALS AND METHODS: 17 patients were evaluated in this prospective IRB-approved study. For each patient, a perfusion CT acquisition was obtained prior to the initiation of chemoradiation, at 1-2 weeks after the start of chemoradiation, and at 12 weeks after the start of chemoradiation therapy...
December 23, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/28004138/investigation-of-volumetric-apparent-diffusion-coefficient-histogram-analysis-for-assessing-complete-response-and-clinical-outcomes-following-pre-operative-chemoradiation-treatment-for-rectal-carcinoma
#18
Vijay Chidambaram, James D Brierley, Bernard Cummings, Rajesh Bhayana, Ravi J Menezes, Erin D Kennedy, Richard Kirsch, Kartik S Jhaveri
PURPOSE: To investigate the relationship of pre-treatment volumetric apparent diffusion coefficient (ADC) histogram parameters with post-operative histopathologic treatment response and clinical outcomes following pre-operative chemoradiation treatment (CRT) in rectal cancer. MATERIALS AND METHODS: In a Health Insurance Portability and Accountability Act compliant retrospective study, 78 rectal cancer patients treated with pre-operative CRT and rectal MRI were included...
December 21, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27997423/strong-pmsa-radioligand-uptake-by-rectal-carcinoma-who-put-the-s-in-psma
#19
Christian Stoykow, Sabine Huber-Schumacher, Nadja Almanasreh, Cordula Jilg, Juri Ruf
We present a case of a 71-year-old patient with newly diagnosed rectal adenocarcinoma and hepatic metastases. Restaging after chemotherapy revealed a good response of the rectal primary while liver metastases were progressive. As the patient also had a history of prostate cancer, a Ga-PSMA-HBED-CC PET/CT scan was performed to noninvasively further assess hepatic metastases. However, a definite differentiation between tumor entities was not possible because not only the liver metastases but also the rectal primary showed radioligand uptake (moderate and strong, respectively)...
December 16, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27991016/-retrospective-analysis-of-carcinomas-of-the-rectum-operated-by-tem-during-one-year-at-our-institute
#20
Zoltán Jánó, Elemér Mohos, Tamás Kovács, Csaba Berki, Tibor Nagy, György Réti, Attila Nagy
INTRODUCTION: The very first TEM (transanal endoscopyc microsurgery) in Hungary was performed in our department by professor Attila Nagy in 1992. Up to August 2016, 1385 operation in total was performed with an average number of 60 per year., 992 operations were carried out for benign reasons and 393 cases for malignancies. We analyze the malignant cases operated by TEM in 2013. SUBJECTS AND METHODS: In 2013 we performed 121 TEM on 118 patients (in 3 cases twice)...
December 2016: Magyar Sebészet
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