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https://www.readbyqxmd.com/read/29049462/association-of-surgical-approach-and-margin-status-with-oncologic-outcomes-following-gross-total-resection-for-sinonasal-melanoma
#1
Zafar Sayed, Jocelyn C Migliacci, Jennifer R Cracchiolo, Christopher A Barker, Nancy Y Lee, Sean M McBride, Viviane S Tabar, Ian Ganly, Snehal G Patel, Luc T Morris, Benjamin R Roman, Alexander N Shoushtari, Marc A Cohen
Importance: Sinonasal mucosal melanoma (SMM) is a rare malignant neoplasm characterized by a poor prognosis despite aggressive intervention including wide surgical resection. Margin status has previously been cited as an important prognostic factor for local control and overall survival (OS) in patients who undergo either an open or endoscopic surgical approach. No comparisons have been made, however, in patients who have undergone gross total resection with or without positive margins...
October 19, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29045536/the-warburg-effect-persistence-of-stem-cell-metabolism-in-cancers-as-a-failure-of-differentiation
#2
M Riester, Q Xu, A Moreira, J Zheng, F Michor, R J Downey
BACKGROUND: Two recent observations regarding the Warburg effect are that (i) the metabolism of stem cells is constitutive ('aerobic') glycolysis while normal cellular differentiation involves a transition to oxidative phosphorylation and (ii) the degree of glucose uptake of a malignancy as imaged by 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) is associated with histologic measures of tumor differentiation. Combining these observations, we hypothesized that the high levels of glucose uptake observed in poorly differentiated cancers may reflect persistence of the glycolytic metabolism of stem cells in malignant cells that fail to fully differentiate...
October 13, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29044896/support-vector-machine-for-breast-cancer-classification-using-diffusion-weighted-mri-histogram-features-preliminary-study
#3
Igor Vidić, Liv Egnell, Neil P Jerome, Jose R Teruel, Torill E Sjøbakk, Agnes Østlie, Hans E Fjøsne, Tone F Bathen, Pål Erik Goa
BACKGROUND: Diffusion-weighted MRI (DWI) is currently one of the fastest developing MRI-based techniques in oncology. Histogram properties from model fitting of DWI are useful features for differentiation of lesions, and classification can potentially be improved by machine learning. PURPOSE: To evaluate classification of malignant and benign tumors and breast cancer subtypes using support vector machine (SVM). STUDY TYPE: Prospective. SUBJECTS: Fifty-one patients with benign (n = 23) and malignant (n = 28) breast tumors (26 ER+, whereof six were HER2+)...
October 16, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29042169/percutaneous-cryoablation-of-renal-cell-carcinoma-with-sinus-vein-involvement-based-on-preprocedural-imaging
#4
Thomas D Atwell, A Nicholas Kurup, Stephen A Boorjian, John J Schmitz, R Houston Thompson, Bradley C Leibovich, Grant D Schmit
PURPOSE: To assess feasibility, safety, and oncologic outcomes of cryoablation in treatment of renal cell carcinoma (RCC) with extension into adjacent renal sinus vein. MATERIALS AND METHODS: Review of an internally maintained renal ablation registry identified 7 patients (4 men and 3 women; median age 62 y; age range, 45-91 y) who underwent percutaneous cryoablation of RCC with imaging consistent with extension of tumor into an immediately adjacent renal sinus vein...
October 14, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29039144/transoral-endoscopic-thyroidectomy-via-a-vestibular-approach-why-and-how
#5
Gianlorenzo Dionigi, Young Jun Chai, Ralph P Tufano, Angkoon Anuwong, Hoon Yub Kim
The transoral endoscopic thyroidectomy vestibular approach (TOETVA) is a novel, scar-free surgical procedure that does not require visible incisions. Indications for TOETVA are as follows: predicted gland width on diagnostic imaging ≤10 cm; a thyroid volume outline of <45 mL or dominant nodule dimension of ≤50 mm; three or four Bethesda lesions; a primary papillary microcarcinoma without local or distant metastasis; and patient request for optimal esthetic results. Contraindications are as follows: patients unfit for general anesthesia; precedent radiation in the head, neck, upper mediastinum; antecedent neck surgery; recurrent goiter; a gland volume of >45 mL or main nodule diameter of >50 mm; and documentation of lymph node or distant metastases, tracheal/esophageal infiltration, preoperative laryngeal nerve palsy, hyperthyroidism, mediastinal goiter, or an oral abscess...
October 16, 2017: Endocrine
https://www.readbyqxmd.com/read/29038888/simultaneous-whole-body-18-f-psma-1007-pet-mri-with-integrated-high-resolution-multiparametric-imaging-of-the-prostatic-fossa-for-comprehensive-oncological-staging-of-patients-with-prostate-cancer-a-pilot-study
#6
Martin T Freitag, Claudia Kesch, Jens Cardinale, Paul Flechsig, Ralf Floca, Matthias Eiber, David Bonekamp, Jan P Radtke, Clemens Kratochwil, Klaus Kopka, Markus Hohenfellner, Albrecht Stenzinger, Heinz-Peter Schlemmer, Uwe Haberkorn, Frederik Giesel
INTRODUCTION: The aim of the present study was to explore the clinical feasibility and reproducibility of a comprehensive whole-body (18)F-PSMA-1007-PET/MRI protocol for imaging prostate cancer (PC) patients. METHODS: Eight patients with high-risk biopsy-proven PC underwent a whole-body PET/MRI (3 h p.i.) including a multi-parametric prostate MRI after (18)F-PSMA-1007-PET/CT (1 h p.i.) which served as reference. Seven patients presented with non-treated PC, whereas one patient presented with biochemical recurrence...
October 16, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29033674/appearance-of-adrenal-myelolipomas-on-2-deoxy-2-18-f-fluoro-d-glucose-positron-emission-tomography-computed-tomography
#7
Steven P Rowe, Mehrbod S Javadi, Lilja B Solnes, Elliot K Fishman
With the widespread use of 2-deoxy-2-((18)F) fluoro-D-glucose positron emission tomography-computed tomography (FDG PET/CT) in oncologic imaging, it has become increasingly important for physicians who interpret FDG PET/CT scans to confidently recognize the spectrum of incidentally encountered benign and malignant findings. The adrenal glands represent an interesting nexus of multiple rare and common benign intrinsic tumors as well as metastases from a variety of primary malignancies. Given the breadth of adrenal gland pathology, careful description of the FDG PET/CT appearance of these pathologies is of value to help reduce misinterpretation...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29033589/yttrium-90-radioembolization-of-unresectable-hepatocellular-carcinoma-a-single-center-experience
#8
Carsten Meyer, Claus Christian Pieper, Hojjat Ahmadzadehfar, Nina Alexandra Lampe, Eva Maria E Matuschek, Thomas Adrian Maschke, Simon Jonas Enkirch, Markus Essler, Ulrich Spengler, Hans Heinz Schild
PURPOSE: To determine the value of radioembolization (RE) for treatment of unresectable hepatocellular carcinoma (HCC). PATIENTS AND METHODS: Records of patients undergoing RE for unresectable HCC were retrospectively reviewed. Biochemical and clinical toxicities, imaging response (according to modified Response Evaluation Criteria In Solid Tumors), time-to-progression (TTP) and overall survival (OS) were analyzed. Data were stratified according to clinical and procedural parameters...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29029890/radiation-therapy-deficiencies-identified-during-on-site-dosimetry-visits-by-the-imaging-and-radiation-oncology-core-houston-quality-assurance-center
#9
Stephen F Kry, Lainy Dromgoole, Paola Alvarez, Jessica Leif, Andrea Molineu, Paige Taylor, David S Followill
PURPOSE: To review the dosimetric, mechanical, and programmatic deficiencies most frequently observed during on-site visits of radiation therapy facilities by the Imaging and Radiation Oncology Core Quality Assurance Center in Houston (IROC Houston). METHODS AND MATERIALS: The findings of IROC Houston between 2000 and 2014, including 409 institutions and 1020 linear accelerators (linacs), were compiled. On-site evaluations by IROC Houston include verification of absolute calibration (tolerance of ±3%), relative dosimetric review (tolerances of ±2% between treatment planning system [TPS] calculation and measurement), mechanical evaluation (including multileaf collimator and kilovoltage-megavoltage isocenter evaluation against Task Group [TG]-142 tolerances), and general programmatic review (including institutional quality assurance program vs TG-40 and TG-142)...
August 24, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29029768/value-of-100-kvp-scan-with-sinogram-affirmed-iterative-reconstruction-algorithm-on-a-single-source-ct-system-during-whole-body-ct-for-radiation-and-contrast-medium-dose-reduction-an-intra-individual-feasibility-study
#10
Y Nagayama, T Nakaura, S Oda, A Tsuji, J Urata, M Furusawa, S Tanoue, D Utsunomiya, Y Yamashita
AIM: To perform an intra-individual investigation of the usefulness of a contrast medium (CM) and radiation dose-reduction protocol using single-source computed tomography (CT) combined with 100 kVp and sinogram-affirmed iterative reconstruction (SAFIRE) for whole-body CT (WBCT; chest-abdomen-pelvis CT) in oncology patients. MATERIALS AND METHODS: Forty-three oncology patients who had undergone WBCT under both 120 and 100 kVp protocols at different time points (mean interscan intervals: 98 days) were included retrospectively...
October 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29029304/conventional-and-advanced-imaging-of-spine-oncologic-disease-nonoperative-post-treatment-effects-and-unique-spinal-conditions
#11
Falgun H Chokshi, Meng Law, Wende N Gibbs
In this review, we discuss the imaging features of diseases and conditions ranging from neoplastic to nonoperative post-treatment effects to unique conditions of the spine. Additionally, advanced imaging may increase diagnostic certainty in cases where conventional imaging characteristics of benign lesions and malignant pathology are variable.
October 6, 2017: Neurosurgery
https://www.readbyqxmd.com/read/29027615/assessment-of-the-role-of-everolimus-therapy-in-patients-with-renal-cell-carcinoma-based-on-daily-routine-and-recent-research-results
#12
Anikó Maráz, András Csejtei, Judit Kocsis, Miklós Szűcs, Zsuzsanna Kahán, György Bodoky, Magdolna Dank, László Mangel, János Révész, Zoltán Varga, Lajos Géczi
Everolimus is indicated for adults with metastatic renal cell carcinoma (mRCC) after failure of vascular endothelial growth factor receptor-tyrosine kinase inhibitors (TKI). Currently, the therapeutic applicability of EVE has been changing. Multicenter evaluation of efficacy and safety of everolimus in daily routine and definition of patient characteristics with favorable outcome. Data of 165 patients from 9 oncology institutes in Hungary were analyzed retrospectively. Everolimus therapy was used after one TKI in 10 mg starting dose...
October 13, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29026204/engineering-and-physical-sciences-in-oncology-challenges-and-opportunities
#13
REVIEW
Michael J Mitchell, Rakesh K Jain, Robert Langer
The principles of engineering and physics have been applied to oncology for nearly 50 years. Engineers and physical scientists have made contributions to all aspects of cancer biology, from quantitative understanding of tumour growth and progression to improved detection and treatment of cancer. Many early efforts focused on experimental and computational modelling of drug distribution, cell cycle kinetics and tumour growth dynamics. In the past decade, we have witnessed exponential growth at the interface of engineering, physics and oncology that has been fuelled by advances in fields including materials science, microfabrication, nanomedicine, microfluidics, imaging, and catalysed by new programmes at the National Institutes of Health (NIH), including the National Institute of Biomedical Imaging and Bioengineering (NIBIB), Physical Sciences in Oncology, and the National Cancer Institute (NCI) Alliance for Nanotechnology...
October 13, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/29026065/urethral-diverticulum-presenting-as-a-large-vaginal-mass-complicating-pregnancy-and-delivery
#14
Everett F Magann, Lisa S Newton, Susan A Barr
BACKGROUND A case report of urethral diverticulum complicating pregnancy is presented. The diagnosis and management are challenging because of the rare nature of this condition, the varied presentations and differential diagnoses, and the possibility of misdiagnosis. CASE REPORT A 25-year-old primigravida with scheduled induction of labor at 39 weeks gestation due to gestational diabetes mellitus presented for a routine antenatal appointment at 38 weeks and four days. On digital cervical examination, she was found to have a large semi-solid anterior vaginal mass, shown by trans-vaginal ultrasound to have a nearly solid appearance of a 5×7 cm mass with septation...
October 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29025982/appropriate-use-criteria-for-somatostatin-receptor-pet-imaging-in-neuroendocrine-tumors
#15
Thomas A Hope, Emily Bergsland, Murat Fani Bozkurt, Michael M Graham, Anthony P Heaney, Ken Herrmann, James R Howe, Matthew H Kulke, Pamela L Kunz, Josh Mailman, Lawrence May, David C Metz, Corina Millo, Sue O'Dorisio, Diane L Reidy-Lagunes, Michael C Soulen, Jonathan R Strosberg
Somatostatin receptor positron emission tomography (SSTR-PET) is an imaging modality for patients with neuroendocrine tumors (NETs) that has demonstrated a significant improvement over conventional imaging (CI). SSTR-PET should replace In-111 pentetreotide scintigraphy (OctreoScan) in all indications in which SSTR scintigraphy is currently being used. These appropriate use criteria (AUC) are intended to aid referring medical practitioners in the appropriate use of SSTR-PET for imaging of patients with NETs, and the indications were evaluated in well-differentiated NETs...
October 12, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29025725/ct-texture-analysis-defining-and-integrating-new-biomarkers-for-advanced-oncologic-imaging-in-precision-medicine-a-comment-on-ct-texture-analysis-potentially-predicts-local-failure-in-head-and-neck-squamous-cell-carcinoma-treated-with-chemoradiotherapy
#16
https://www.readbyqxmd.com/read/29025377/18f-fdg-pet-ct-in-breast-cancer-evidence-based-recommendations-in-initial-staging
#17
REVIEW
Ana Paula Caresia Aroztegui, Ana María García Vicente, Soledad Alvarez Ruiz, Roberto Carlos Delgado Bolton, Javier Orcajo Rincon, Jose Ramon Garcia Garzon, Maria de Arcocha Torres, Maria Jose Garcia-Velloso
Current guidelines do not systematically recommend 18F-FDG PET/CT for breast cancer staging; and the recommendations and level of evidence supporting its use in different groups of patients vary among guidelines. This review summarizes the evidence about the role of 18F-FDG PET/CT in breast cancer staging and the therapeutic and prognostic impact accumulated in the last decade. Other related aspects, such as the association of metabolic information with biology and prognosis are considered and evidence-based recommendations for the use of 18F-FDG PET/CT in breast cancer staging are offered...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29022216/initial-evaluation-of-the-celesteion-large-bore-pet-ct-scanner-in-accordance-with-the-nema-nu2-2012-standard-and-the-japanese-guideline-for-oncology-fdg-pet-ct-data-acquisition-protocol-version-2-0
#18
Tomohiro Kaneta, Matsuyoshi Ogawa, Nobutoku Motomura, Hitoshi Iizuka, Tetsu Arisawa, Ayako Hino-Shishikura, Keisuke Yoshida, Tomio Inoue
BACKGROUND: The goal of this study was to evaluate the performance of the Celesteion positron emission tomography/computed tomography (PET/CT) scanner, which is characterized by a large-bore and time-of-flight (TOF) function, in accordance with the NEMA NU-2 2012 standard and version 2.0 of the Japanese guideline for oncology fluorodeoxyglucose PET/CT data acquisition protocol. Spatial resolution, sensitivity, count rate characteristic, scatter fraction, energy resolution, TOF timing resolution, and image quality were evaluated according to the NEMA NU-2 2012 standard...
October 11, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29022081/surgical-management-and-outcomes-of-12-cases-of-wilms-tumour-with-intracardiac-extension-from-a-single-centre
#19
Sharon G Cox, A Davidson, J Thomas, A Brooks, J Hewitson, A Numanoglu, A J W Millar
PURPOSE: To review demographics, effect of preoperative chemotherapy on tumour thrombus, imaging, operative strategy, and outcomes of 12 patients presenting with intracardiac extension of Wilms tumour thrombus. METHODS: A retrospective audit was undertaken on patients with intracardiac extension of Wilms tumour. Patients were identified from the oncology database and information obtained on clinical presentation, stage, preoperative treatment, surgical procedures and complications, histology, and survival status...
October 11, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29022058/-psma-radioguided-surgery-in-localised-recurrent-prostate-cancer
#20
REVIEW
T Horn, I Rauscher, M Eiber, J E Gschwend, T Maurer
Recently, prostate-specific membrane antigen radioguided surgery (PSMA-RGS) was introduced for targeted resection of localised prostate cancer recurrence. Preliminary results show that PSMA-RGS is very sensitive and specific in tracking suspicious lesions intraoperatively. Prerequisite for PSMA-RGS is a positive (68)Ga-PSMA positron emission tomography (PET) scan with a preferably singular soft tissue or lymph node recurrence. The first 63 patients treated with PSMA-RGS were analyzed. The extracorporal analysis of a total of 277 tissue specimens yielded the following test quality criteria regarding the presence of malignant tissue: sensitivity 86...
October 11, 2017: Der Urologe. Ausg. A
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