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Radiation and salivary gland

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https://www.readbyqxmd.com/read/29131404/efficacy-of-radiation-therapy-for-the-treatment-of-sialocele-in-dogs
#1
V J Poirier, S Mayer-Stankeová, J Buchholz, D M Vail, B Kaser Hotz
BACKGROUND: Sialocele is a collection of saliva that has leaked from a damaged salivary gland or duct and is surrounded by granulation tissue. Surgery is the recognized first-line treatment. Recurrence rate after surgery is 5-14%. Salivary gland tissue is very sensitive to radiation therapy (RT). HYPOTHESIS/OBJECTIVES: Radiation therapy will be useful for the treatment of sialocele. The aims were to characterize response rate and clinical course of dogs with sialocele treated with RT and to determine a starting dose for clinical use...
November 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29114601/elective-nodal-dose-of-60%C3%A2-gy-or-50%C3%A2-gy-in-head-and-neck-cancers-a-matched-pair-analysis-of-outcomes-and-toxicity
#2
Vedang Murthy, Lavanya Gurram, Sadhana Kannan, Minakshi Gandhi, Tejpal Gupta, Sarbani Ghosh Laskar, Ashwini Budrukkar, Jai Prakash Agarwal
Purpose: The main objective of this study was to evaluate appropriate doses for elective nodal irradiation (ENI) in head and neck squamous cell carcinoma (HNSCC) patients to optimize the therapeutic ratio. Methods and materials: A matched pair analysis of 2 similar cohorts of HNSCC treated with intensity modulated radiation therapy with different dose prescriptions to the elective nodal regions was conducted. One group received 60 Gy, whereas the other received 50 Gy (ENI60 and ENI50 groups, respectively)...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29109791/can-molecular-profiling-enhance-radiotherapy-impact-of-personalized-targeted-gold-nanoparticles-on-radiosensitivity-and-imaging-of-adenoid-cystic-carcinoma
#3
Inbal Hazkani, Menachem Motiei, Oshra Betzer, Tamar Sadan, Dimitri Bragilovski, Leon Lubimov, Aviram Mizrachi, Tuvia Hadar, Mattan Levi, Irit Ben-Aharon, Izhack Haviv, Rachela Popovtzer, Aron Popovtzer
Personalized molecular profiling has an established role in selection of treatment for metastatic disease; however, its role in improving radiosensitivity and functional imaging has not been evaluated. In the current study, we examined molecular profiling as a tool for designing personalized targeted gold nanoparticles (GNP) to serve as dual-modal tumor radiosensitizers and functional imaging enhancers. To this end, molecular profiling of a patient's salivary gland adenoid cystic carcinoma (ACC) was performed, and anaplastic lymphoma kinase (ALK) mutation was detected...
2017: Theranostics
https://www.readbyqxmd.com/read/29080017/safety-pharmacokinetics-metabolism-and-radiation-dosimetry-of-18-f-tetrafluoroborate-18-f-tfb-in-healthy-human-subjects
#4
Huailei Jiang, Nicholas R Schmit, Alex R Koenen, Aditya Bansal, Mukesh K Pandey, Robert B Glynn, Bradley J Kemp, Kera L Delaney, Angela Dispenzieri, Jamie N Bakkum-Gamez, Kah-Whye Peng, Stephen J Russell, Tina M Gunderson, Val J Lowe, Timothy R DeGrado
BACKGROUND: (18)F-Tetrafluoroborate ((18)F-TFB) is a promising iodide analog for PET imaging of thyroid cancer and sodium/iodide symporter (NIS) reporter activity in viral therapy applications. The aim of this study was to evaluate the safety, pharmacokinetics, biodistribution, and radiation dosimetry of high-specific activity (18)F-TFB in healthy human subjects. METHODS: (18)F-TFB was synthesized with specific activity of 3.2 ± 1.3 GBq/μmol (at the end of synthesis)...
October 27, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29038831/recovery-from-sublethal-damage-and-potentially-lethal-damage-proton-beam-irradiation-vs-x%C3%A2-ray-irradiation
#5
Shingo Hashimoto, Chikao Sugie, Hiromitsu Iwata, Hiroyuki Ogino, Chihiro Omachi, Keisuke Yasui, Jun-Etsu Mizoe, Yuta Shibamoto
PURPOSE: In order to clarify the biological response of tumor cells to proton beam irradiation, sublethal damage recovery (SLDR) and potentially lethal damage recovery (PLDR) induced after proton beam irradiation at the center of a 10 cm spread-out Bragg peak (SOBP) were compared with those seen after X‑ray irradiation. METHODS: Cell survival was determined by a colony assay using EMT6 and human salivary gland tumor (HSG) cells. First, two doses of 4 Gy/GyE (Gray equivalents, GyE) were given at an interfraction interval of 0-6 h...
October 16, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28990673/clinical-characteristics-and-outcomes-of-major-salivary-gland-malignancies-in-children
#6
Shannon Radomski, Sarah Dermody, Earl H Harley
OBJECTIVES/HYPOTHESIS: Determine demographics, clinical characteristics, and survival rates for children with primary salivary gland malignancies. STUDY DESIGN: Retrospective, population-based cohort study. METHODS: All cases of primary salivary gland malignancies diagnosed between the years of 2002 and 2013 in patients ages 0 to 19 years were extracted from the National Cancer Institute's Surveillance, Epidemiology, and End Results database...
October 9, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28986509/why-targeting-psma-is-a-game-changer-in-the-management-of-prostate-cancer-%C3%A2-a-urologist-s-point-of-view
#7
Nicholas M Donin, Robert Reiter
Prostate-specific membrane antigen (PSMA), is a transmembrane glycoprotein that is highly expressed on prostate adenocarcinomas, exhibits only limited expression in benign and extra-prostatic tissues, and thus represents an ideal target for the diagnosis and management of prostate cancer. Since its discovery over 30 years ago, significant effort has been made to develop clinical technology targeting PSMA. The last 5 years have seen an explosion of development of new agents targeting PSMA for diagnostic and therapeutic use...
October 6, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28949251/sialendoscopy-in-the-management-of-radioiodine-induced-sialadenitis-a-systematic-review
#8
REVIEW
Thai-Duong Cung, Wanda Lai, Peter F Svider, Curtis Hanba, Julie Samantray, Adam J Folbe, Mahdi Shkoukani, Syed Naweed Raza
OBJECTIVES: Salivary gland dysfunction as a consequence of radioiodide ablation is present in as many as two-thirds of patients, and unfortunately, many of these individuals do not respond to conservative measures. Sialendoscopy as a minimally invasive therapeutic modality may have utility in the treatment of radioiodide induced sialadenitis (RAIS). Our aim was to explore whether sialendoscopy resulted in clinical improvement in patients with RAIS. METHODS: A systematic review of studies on sialendoscopy for RAIS was conducted using MEDLINE database, Embase, and Cochrane Library...
November 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28946910/primary-paranasal-sinus-hyalinizing-clear-cell-carcinoma-a-case-report
#9
Batool M AlAli, Mohammed J Alyousef, Ahmad Salah Kamel, Mohammad A Al Hamad, Mohammad H Al-Bar, Roaa M Algowiez
BACKGROUND: Hyalinizing clear cell carcinoma (HCCC) is a rare low-grade tumour of salivary glands that was first described as a distinct entity in 1994 by Milchgrub et al. EWSR1-ATF1 fusion was found to be specific for this tumour. The majority of the reported cases of HCCC arise from minor salivary glands within the oral cavity. Primary HCCC of the paranasal sinus is extremely uncommon. To our knowledge, only three cases have been reported in the English literature. Herein, we present a case of HCCC of the posterior ethmoid/maxillary sinus...
September 25, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28938858/evaluating-doses-of-multi-slice-ct-in-brain-examinations-using-various-methods
#10
Hung-Chih Lin, Te-Jen Lai, Hsien-Chun Tseng, Cheng-Hsun Lin, Yen-Ling Tseng, Chien-Yi Chen
PURPOSE: The effective dose (HE) and organ or tissue equivalent dose (HT) of a Rando phantom undergoing two brain computed tomography (CT) examination protocols were evaluated using thermoluminescent dosimeters (TLD-100H) and dose length product (DLP) methods. MATERIALS AND METHODS: TLDs were inserted into the correlated positions of an organ or tissue of Rando phantom, such as thyroid, brain, and salivary gland, using (A) axial scan: scanning the maxillae ranging from external auditory meatus to the parietal bone, and (B) helical scan: scanning from the mandible to the parietal bone...
September 22, 2017: Computer Assisted Surgery (Abingdon, England)
https://www.readbyqxmd.com/read/28894810/sialendoscopy-for-non-stone-disorders-the-current-evidence
#11
REVIEW
Evren Erkul, M Boyd Gillespie
OBJECTIVE: Review the current literature on the use of sialendoscopy in the treatment of non-stone disorders of the major salivary glands. DATA SOURCES: Eligible articles that reported on the use of sialendoscopy in the treatment of non-stone disorders were identified using MEDLINE, Embase, and Google Scholar through May 2016. The search used key words sialendoscopy, salivary endoscopy, salivary scope, salivary duct stenosis, salivary duct stricture, Sjogren's disease, radioiodine sialadenitis, salivary duct obstruction, sialadenitis, chronic sialadenitis, juvenile recurrent parotitis, parotitis, and radiation sialadenitis...
October 2016: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28891710/the-use-of-a-thyroid-shield-for-intraoral-anterior-oblique-occlusal-views-a-risk-based-approach
#12
Mark Worrall, Alison Menhinick, Donald J Thomson
OBJECTIVES: To estimate the radiation dose reduction to the thyroid for an anterior oblique occlusal view from the use of a thyroid shield, compare this with the variation in thyroid dose resulting from differences in examination positioning and discuss the additional considerations associated with the use of a thyroid shield before making a recommendation on their routine use for this examination. METHODS: Doses to the oral mucosa, the salivary glands, the thyroid, the extrathoracic airways, the oesophagus and the lungs were directly measured for anterior oblique occlusal X-rays of a Rando phantom with and without a thyroid shield using strips of calibrated XRQA Gafchromic film...
October 27, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28891033/targeted-alpha-therapy-of-mcrpc-dosimetry-estimate-of-213-bismuth-psma-617
#13
Clemens Kratochwil, Karl Schmidt, Ali Afshar-Oromieh, Frank Bruchertseifer, Hendrik Rathke, Alfred Morgenstern, Uwe Haberkorn, Frederik L Giesel
PURPOSE: PSMA-617 is a small molecule targeting the prostate-specific membrane antigen (PSMA). In this work, we estimate the radiation dosimetry for this ligand labeled with the alpha-emitter (213)Bi. METHODS: Three patients with metastatic prostate cancer underwent PET scans 0.1 h, 1 h, 2 h, 3 h, 4 h and 5 h after injection of (68)Ga-PSMA-617. Source organs were kidneys, liver, spleen, salivary glands, bladder, red marrow and representative tumor lesions...
September 11, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28885206/ultrasound-elastography-in-diagnosis-and-follow-up-for-patients-with-chronic-recurrent-parotitis
#14
Pamela Zengel, Christoph A Reichel, Teresa Vincek, Dirk André Clevert
PURPOSE: Chronic recurrent parotitis (CRP) is a non-obstructive disease with episodes characterized by painful swelling of the parotid gland. It presents in both a juvenile and an adult form, with no clear information on its actual origin. Diagnosis is based on patient medical history and ultrasound examination but is frequently not correctly identified. Acoustic Radiation Force Impulse Imaging (ARFI) is a novel ultrasound elastography technology that has recently been implemented in the diagnostic work-up of patients with malignancies...
September 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28871434/cutaneous-and-mucosal-manifestations-of-sj%C3%A3-gren-s-syndrome
#15
REVIEW
Elena Generali, Antonio Costanzo, Carlo Mainetti, Carlo Selmi
Sjögren's syndrome is currently considered an "autoimmune epithelitis," as exocrine glands, especially salivary and lacrimal, are progressively destructed by an immune-mediated process associated with specific serum autoantibodies and local lymphocyte infiltrate. Xerostomia remains a key complain in patients with Sjögren's syndrome but should be evaluated also for other causes such as xerogenic medications, followed by radiation and chemotherapy for head and neck cancers, hormone disorders, infections, or other connective tissue diseases...
September 4, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28865517/management-of-radiation-toxicity-in-head-and-neck-cancers
#16
REVIEW
Farzan Siddiqui, Benjamin Movsas
Head and neck cancers account for approximately 3% of all cancers in the United States with 62,000 new cases diagnosed annually. The global incidence is approximately 700,000 new cases a year. There has also been a recent increase in human papilloma virus-related oropharyngeal cancers. External beam radiation therapy (RT) is commonly used as an effective therapy for head and neck (H&N) cancers. This is used as a definitive treatment (alone or in combination with chemotherapy) or as an adjuvant treatment after surgical resection of the tumors...
October 2017: Seminars in Radiation Oncology
https://www.readbyqxmd.com/read/28861706/xerostomia-quality-of-life-scale-xeqols-questionnaire-validation-of-italian-version-in-head-and-neck-cancer-patients
#17
Luciana Lastrucci, Silvia Bertocci, Vittorio Bini, Simona Borghesi, Roberta De Majo, Andrea Rampini, Pietro Giovanni Gennari, Paola Pernici
AIM: To translate the Xerostomia Quality-of-Life Scale (XeQoLS) into Italian language (XeQoLS-IT). Xerostomia is the most relevant acute and late toxicity in patients with head and neck cancer treated with radiotherapy (RT). Patient-reported outcome (PRO) instruments are subjective report on patient perception of health status. The XeQoLS consists of 15 items and measures the impact of salivary gland dysfunction and xerostomia on the four major domains of oral health-related QoL. METHODS: The XeQoLS-IT was created through a linguistic validation multi-step process: forward translation (TF), backward translation (TB) and administration of the questionnaire to 35 Italian patients with head and neck cancer...
August 31, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28851495/intensity-modulated-radiotherapy-in-head-and-neck-cancer-an-update-for-oral-and-maxillofacial-surgeons
#18
REVIEW
P A Brennan, K L Bradley, M Brands
Intensity-modulated radiation therapy (IMRT), a relatively new method of delivering radiotherapy, can precisely target a point within a specific tumour and reduce the dose to nearby anatomical structures. This is particularly important in the head and neck where radiotherapy can easily and irreparably damage the salivary glands, spinal cord, and eyes, and where, with increasingly better outcomes and survival, late complications of conventional radiotherapy (including osteoradionecrosis of the cervical spine) can be difficult to manage...
August 26, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28838774/the-role-of-hyperbaric-oxygen-therapy-in-the-prevention-and-management-of-radiation-induced-complications-of-the-head-and-neck-%C3%A2-a-systematic-review-of-literature
#19
P Ravi, D Vaishnavi, A Gnanam, V B Krishnakumar Raja
Radiation therapy for the treatment of head and neck cancer can injure normal tissues and have devastating side effects. Hyperbaric oxygen (HBO) is known to reduce the severity of radiation-induced injury by promoting wound healing. While most of the research in literature has focused on its efficacy in osteonecrosis, HBO has other proven benefits as well. The aim of this review was to identify the various benefits of hyperbaric oxygen therapy in patients who have undergone radiation for head and neck cancer...
August 22, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28790138/amifostine-does-not-protect-thyroid-cancer-cells-in-dna-damaging-in-vitro-models
#20
Joanna Klubo-Gwiezdzinska, John Costello, Kirk Jensen, Aneeta Patel, Rok Tkavc, Douglas Van Nostrand, Kenneth D Burman, Leonard Wartofsky, Vasyl Vasko
BACKGROUND: Amifostine is a potent scavenger of reactive oxygen species that is used for the salivary gland protection during therapy with radioactive iodine for thyroid cancer. There are no data on the potential effect of amifostine on thyroid cancer cells. METHODS: We investigated the effects of the active form of amifostine (WR-1065) on the response of thyroid cancer cells to treatment with DNA-damaging agents. WR-1065 was examined in human thyroid cancer cell lines (FTC133, TPC1, BCPAP and C643) and embryonic fibroblast cells NIH3T3...
October 2017: Endocrine Connections
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