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Oncology radiology

Michael E Ivan, Roberto Jose Diaz, Michael H Berger, Gregory W Basil, David A Osiason, Thomas Plate, Amanda Wallo, Ricardo J Komotar
BACKGROUND AND OBJECTIVE: Magnetic resonance-guided laser-induced thermotherapy (MR-LITT) is a minimally invasive technique that shows promise in neuro-oncology due to its superiority in delivering precise minimally invasive thermal energy with minimal collateral damage. In this analysis we investigate initial data on MR-LITT's effect on dural based lesions. METHODS: Five patients were identified with dural based lesions (4 meningiomas, 1 solitary fibrous tumor) with clear evidence of radiological progression...
October 17, 2016: World Neurosurgery
Petra Balogh, Rita Bánusz, Monika Csóka, Zsófia Váradi, Edit Varga, Zoltán Sápi
BACKGROUND: Rhabdomyosarcoma (RMS) is a malignant tumor of mesenchymal origin and comprises the largest category of soft-tissue sarcomas both in children and adolescents. From a pediatric oncology point of view, RMS has traditionally been classified into alveolar (ARMS) and embryonal (ERMS) subtypes. The anatomical localization of the tumor may vary, but commonly involve the head/neck regions, male and female urogenital tract or the trunk and extremities. CASE PRESENTATION: Here, we report two challenging cases involving 17- and 9-years-olds males where diffuse and multiplex bone lesions suggested either a hematological disease or a primary bone tumor (mesenchymal chondrosarcoma)...
October 18, 2016: Diagnostic Pathology
Michael S Hofman, Rodney J Hicks
(18)F-fluorodeoxyglucose (FDG) PET/CT is a pivotal imaging modality for cancer imaging, assisting diagnosis, staging of patients with newly diagnosed malignancy, restaging following therapy and surveillance. Interpretation requires integration of the metabolic and anatomic findings provided by the PET and CT components which transcend the knowledge base isolated in the worlds of nuclear medicine and radiology, respectively. In the manuscript we detail our approach to reviewing and reporting a PET/CT study using the most commonly used radiotracer, FDG...
October 18, 2016: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
J Trotman, J Trinh, Y L Kwan, J A Estell, J Fletcher, K Archer, K Lee, K Foo, J Curnow, A Bianchi, L Wignall, E Verner, R Gasiorowski, E Siedlecka, I Cunningham
BACKGROUND: Multidisciplinary Team (MDT) meetings aimed at facilitating peer review have become standard practice in oncology. However, there is scant literature on the optimal structure and conduct of such meetings. AIMS: We aimed to develop a process for formal peer review of patients with haematologic malignancies, and to audit any resulting changes made to the management recommendations of the treating physician. METHODS: A standard operating procedure (SOP) for MDT meetings was developed essentially to integrate clinical peer review with weekly pathology and radiology meetings...
October 18, 2016: Internal Medicine Journal
Emilia Ip, Adrian M J Pokorny, Stephen Della-Fiorentina, Philip Beale, Victoria Bray, Belinda E Kiely, Prunella Blinman
BACKGROUND: Octogenarians represent a growing population reviewed in medical oncology clinics, yet there is a paucity of data on how chemotherapy is tolerated in this age group. AIM: To describe the use of palliative first-line chemotherapy in patients 80 years and over, and factors associated with its use. METHODS: We identified all new patients aged 80 years or older diagnosed with incurable advanced solid organ cancer, and seen in one of three Sydney medical oncology outpatient clinics between January 2009 and December 2013...
October 17, 2016: Internal Medicine Journal
Lorenzo Trevisiol, Pasquale Procacci, Antonio D'Agostino, Francesca Ferrari, Daniele De Santis, Pier Francesco Nocini
PURPOSE: Several authors have described zygoma implants as a reliable surgical option to rehabilitate severe maxillary defects in case of extreme atrophy or oncological resections. The aim of this study is to report a new technical approach to the rehabilitation of a complex oronasal defect by means of a zygoma-implant-supported full-arch dental prosthesis combined with a nasal epithesis. PATIENTS AND METHODS: The patient presented with a subtotal bilateral maxillectomy and total rhinectomy defect because of a squamous cell carcinoma of the nose...
December 2016: Int J Implant Dent
Axel Andres, Pietro Majno, Sylvain Terraz, Philippe Morel, Arnaud Roth, Laura Rubbia-Brandt, Eduardo Schiffer, Frederic Ris, Christian Toso
Colorectal liver metastasis (CRLM) is the most frequent indication for liver resection in many centers. Recent improvements in oncology, surgery, interventional radiology, pathology and anesthesiology allow curative treatment in a larger proportion of patients with CRLM. Areas covered: We illustrate the various aspects of the management of CRLM through 11 questions that summarize the topic, from the current obtained survival to future perspectives such as transplantation. The limits of a curative treatment are also presented from different angles, such as the benefits of pathology, the surgical options for extreme resections, the available chemotherapies and their efficacy, or the non-surgical ablative treatments...
October 17, 2016: Expert Review of Anticancer Therapy
Charles A Mkony, Ephata E Kaaya, Alex J Goodell, Sarah B Macfarlane
BACKGROUND: Faced with one of the lowest physician-to-population ratios in the world, the Government of Tanzania is urging its medical schools to train more physicians. The annual number of medical students admitted across the country rose from 55 in the 1990s to 1,680 approved places for the 2015/16 academic year. These escalating numbers strain existing faculty. OBJECTIVE: To describe the availability of faculty in medical schools in Tanzania. DESIGN: We identified faculty lists published on the Internet by five Tanzanian medical schools for the 2011/12 academic year and analyzed the appointment status, rank, discipline, and qualifications of faculty members...
2016: Global Health Action
Michiro Susa, Kazutaka Kikuta, Robert Nakayama, Kazumasa Nishimoto, Keisuke Horiuchi, Sota Oguro, Masanori Inoue, Hideki Yashiro, Seishi Nakatsuka, Masaya Nakamura, Morio Matsumoto, Kazuhiro Chiba, Hideo Morioka
BACKGROUND: Historically, local control of recurrent sarcomas has been limited to radiotherapy when surgical re-resection is not feasible. For metastatic carcinomas to the bone or soft tissue, radiotherapy and some interventional radiology treatment along with other systemic therapies have been widely advocated due to the possibility of disseminated disease. These techniques are effective in alleviating pain and achieving local control for some tumor types, but it has not been effective for prolonged local control of most tumors...
October 13, 2016: BMC Cancer
Olivier Lamy, Elena Gonzalez-Rodriguez, Delphine Stoll, Didier Hans, Bérengère Aubry-Rozier
CONTEXT: Denosumab inhibits bone resorption, increases bone mineral density (BMD), and reduces fracture risk. Denosumab was approved for the treatment of osteoporosis and the prevention of bone loss in some oncologic situations. Denosumab discontinuation is associated with a severe bone turnover rebound (BTR) and a rapid loss of BMD. The clinical consequences of the BTR observed after denosumab discontinuation are not known. Cases description: We report 9 women who presented 50 rebound-associated vertebral fractures (RAVFs) after denosumab discontinuation...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
Marta Martin-Richard, Angels Ginès, Juan Ramón Ayuso, Luis Sabater, Joan Fabregat, Ramiro Mendez, Glòria Fernández-Esparrach, Xavier Molero, Eva C Vaquero, Miriam Cuatrecasas, Antonio Ferrández, Joan Maurel
BACKGROUND AND OBJECTIVE: Clinical management of adenocarcinoma of the pancreas is complex, and requires a multidisciplinary approach. The same applies for the premalignant lesions that are increasingly being diagnosed. The current document is an update on the diagnosis and management of premalignant lesions and adenocarcinoma of the pancreas. PATIENTS AND METHODS: A conference to establish the basis of the literature review and manuscript redaction was organized by the Grupo Español Multidisciplinar en Cáncer Digestivo...
October 7, 2016: Medicina Clínica
Andrew B Rosenkrantz, Ankur M Doshi, Luke A Ginocchio, Yindalon Aphinyanaphongs
RATIONALE AND OBJECTIVES: This study aimed to assess the performance of a text classification machine-learning model in predicting highly cited articles within the recent radiological literature and to identify the model's most influential article features. MATERIALS AND METHODS: We downloaded from PubMed the title, abstract, and medical subject heading terms for 10,065 articles published in 25 general radiology journals in 2012 and 2013. Three machine-learning models were applied to predict the top 10% of included articles in terms of the number of citations to the article in 2014 (reflecting the 2-year time window in conventional impact factor calculations)...
September 27, 2016: Academic Radiology
Paul E Wallner, Anthony Gerdeman, Jennifer M Willis, Anthony L Zietman
Based on data obtained from clinical practice analysis (CPA) surveys performed in 2010 and 2013, and with input from its maintenance of certification (MOC) advisory committee, the American Board of Radiology (ABR) recognized that the changing nature of radiation oncology practice patterns warranted revisions of its MOC Part III cognitive examination. One significant revision was the introduction of a modular examination that allowed diplomates to select specific areas of clinical interest. The module-based items represented 30% (60 of 200) of total examination content...
May 7, 2016: Practical Radiation Oncology
Olivera Kosovac, Nada Santrac, Ivan Markovic, Dusica Gavrilovic, Aleksandar Martinovic, Marko Jevric, Igor Spurnic, Radan Dzodic
PURPOSE: To evaluate the adverse outcomes after delayed breast reconstruction (DBR) by abdominal advancement flap (AAF) and permanent prosthesis in patients treated with mastectomy due to unilateral breast carcinoma, as well as to determine which factors are predictive for their occurrence. METHODS: The study included 155 patients operated at the Institute for Oncology and Radiology of Serbia from 1996 to 2010. All patients had total mastectomy and axillary lymph node dissection, followed by specific oncological treatment...
July 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Giancarlo D'Andrea, Lucia Palombi, Giuseppe Minniti, Alessandro Pesce, Paolo Marchetti
OBJECTIVE: Brain metastases occur between 10 and 40% of patients with cancer and are more common than primary brain tumors (30-40%) and their incidence is growing because of the improvements in control of systemic disease, the prolonged survival and the better radiological detection. Modern treatment of brain metastases dramatically changed their expected prognosis that traditionally has been considered very poor referring such patients only to palliation because their terminal stage, and new prognostic indexes have been proposed to evaluate them...
September 22, 2016: World Neurosurgery
Dániel Deme, András Telekes
The International Commission on Radiological Protection estimates, that 100 mSv exposure of radiation increases cancer risk by 0.5%. The central hypothesis of the Linear No Threshold model is that low dose ionizing radiation can induce carcinogenesis through the so called "one hit action", that is one or more deoxyribonucleic acid strands can be broken by the hit of only one electron particule. Regardless of the radiation dose, radiation exposure increases cancer risk. In the United States of America, one-third of computed tomographic scans are carried with no clear clinical indication, i...
September 2016: Orvosi Hetilap
Audrey Emmanuelle Dugué, Marina Pulido, Sylvie Chabaud, Lisa Belin, Jocelyn Gal
We describe how to estimate progression-free survival while dealing with interval-censored data in the setting of clinical trials in oncology. Three procedures with SAS and R statistical software are described: one allowing for a nonparametric maximum likelihood estimation of the survival curve using the EM-ICM (Expectation and Maximization-Iterative Convex Minorant) algorithm as described by Wellner and Zhan in 1997 ; a sensitivity analysis procedure in which the progression time is assigned (i) at the midpoint, (ii) at the upper limit (reflecting the standard analysis when the progression time is assigned at the first radiological exam showing progressive disease), or (iii) at the lower limit of the censoring interval ; and finally, two multiple imputations are described considering a uniform or the NPMLE distribution...
September 23, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Sameh Roshdy, Ahmed Senbel, Ashraf Khater, Omar Farouk, Adel Fathi, EmadEldeen Hamed, Adel Denewer
The surgical treatment of bladder cancer is the curative treatment especially in early cases. In this study, our aim was to assess the outcome of preservation of internal genital organs in selected females both oncologically and functionally, and to assess the feasibility of technique and its complication. 24 females with clinically and radiologically diagnosed T2 bladder cancer underwent gynecologic-tract sparing cystectomy (GTSC). Age ranged from 45 to 60 years. Patients with diffuse carcinoma-in-situ, those with tumors involving the bladder neck, those with poor general condition and those with preoperative incontinence were excluded...
September 2016: Indian Journal of Surgical Oncology
Jose G Bazan, Fenghai Duan, Bradley S Snyder, Dunstan Horng, Edward E Graves, Barry A Siegel, Mitchell Machtay, Billy W Loo
PURPOSE: To determine whether higher pre-treatment metabolic tumor volume (tMTV-pre) is associated with worse overall survival (OS) in patients with inoperable NSCLC treated with definitive chemoradiation (CRT). METHODS: This is a secondary analysis of the American College of Radiology Imaging Network (ACRIN) 6668/Radiation Therapy Oncology Group 0235 trial. Pre-treatment PET scans were performed on ACRIN-qualified scanners. Computer-aided MTV measurement was performed using RT_Image...
September 19, 2016: European Journal of Nuclear Medicine and Molecular Imaging
Sughosh Dhakal, Ranjana Advani, Leslie K Ballas, Bouthaina S Dabaja, Christopher R Flowers, Chul S Ha, Bradford S Hoppe, Nancy P Mendenhall, Monika L Metzger, John P Plastaras, Kenneth B Roberts, Ronald Shapiro, Sonali M Smith, Stephanie A Terezakis, Karen M Winkfield, Anas Younes, Louis S Constine
This topic addresses the treatment of newly diagnosed patients with favorable prognosis stage I and II Hodgkin lymphoma. In most cases, combined modality therapy (chemotherapy followed by involved site radiation therapy) constitutes the current standard of care. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer-reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios...
September 16, 2016: American Journal of Clinical Oncology
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