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Head neck radiology

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https://www.readbyqxmd.com/read/28643357/nut-carcinoma-in-children-and-adults-a-multicenter-retrospective-study
#1
Lauriane Lemelle, Gaëlle Pierron, Paul Fréneaux, Sophie Huybrechts, Alexandra Spiegel, Dominique Plantaz, Morbize Julieron, Sophie Dumoucel, Antoine Italiano, Fréderic Millot, Christophe Le Tourneau, Guy Leverger, Pascal Chastagner, Matthieu Carton, Daniel Orbach
BACKGROUND: Nuclear protein of the testis (NUT) carcinoma (formerly NUT midline carcinoma) is an aggressive tumor defined by the presence of NUT rearrangement with a poor prognosis. This rare cancer is underdiagnosed and poorly treated. OBJECTIVE: The primary objective of this study was to describe the clinical, radiologic, and biological features of NUT carcinoma. The secondary objective was to describe the various treatments and assess their efficacy. METHODS: This retrospective multicenter study was based on review of the medical records of children and adults with NUT carcinoma with specific rearrangement or positive anti-NUT nuclear staining (>50%)...
June 23, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28641898/sclerosing-odontogenic-carcinoma-current-diagnostic-and-management-considerations-concerning-a-most-unusual-neoplasm
#2
REVIEW
M Hanisch, D Baumhoer, S Elges, L F Fröhlich, J Kleinheinz, S Jung
Sclerosing odontogenic carcinoma (SOC) is a primary intraosseous carcinoma of the jaws that has been listed as a separate entity for the first time in the latest version of the World Health Organization classification of Head and Neck Tumours (2017). The aim of this study was to analyse and interpret the existing literature on SOC in the context of a clinical case treated in the authors' department. A systematic search of the PubMed database was performed in accordance with the PRISMA guidelines, yielding nine cases of SOC reported so far...
June 19, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28640950/development-of-a-monte-carlo-multiple-source-model-for-inclusion-in-a-dose-calculation-auditing-tool
#3
Austin M Faught, Scott E Davidson, Jonas Fontenot, Stephen F Kry, Carol Etzel, Geoffrey S Ibbott, David S Followill
PURPOSE: The Imaging and Radiation Oncology Core Houston (IROC-H) (formerly the Radiological Physics Center) has reported varying levels of agreement in their anthropomorphic phantom audits. There is reason to believe one source of error in this observed disagreement is the accuracy of the dose calculation algorithms and heterogeneity corrections used. To audit this component of the radiotherapy treatment process an independent dose calculation tool is needed. METHODS: Monte Carlo multiple source models for Elekta 6MV and 10MV therapeutic x-ray beams were commissioned based on measurement of central axis depth dose data for a 10 x 10 cm(2) field size and dose profiles for a 40 x 40 cm(2) field size...
June 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28627989/computed-tomography-detection-of-extracapsular-spread-of-squamous-cell-carcinoma-of-the-head-and-neck-in-metastatic-cervical-lymph-nodes
#4
Joshua A Carlton, Adam W Maxwell, Lyndsey B Bauer, Sara M McElroy, Lester J Layfield, Humera Ahsan, Ajay Agarwal
Background and purpose In patients with squamous cell carcinoma of the head and neck (HNSCC), extracapsular spread (ECS) of metastases in cervical lymph nodes affects prognosis and therapy. We assessed the accuracy of intravenous contrast-enhanced computed tomography (CT) and the utility of imaging criteria for preoperative detection of ECS in metastatic cervical lymph nodes in patients with HNSCC. Materials and methods Preoperative intravenous contrast-enhanced neck CT images of 93 patients with histopathological HNSCC metastatic nodes were retrospectively assessed by two neuroradiologists for ECS status and ECS imaging criteria...
June 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28611962/clinical-results-of-complex-subtrochanteric-femoral-fractures-with-long-cephalomedullary-hip-nail
#5
Kwang-Kyoun Kim, Yougun Won, Danica H Smith, Gi-Soo Lee, Hee Young Lee
PURPOSE: Good results of the cephalomedullary nails have been reported in proximal femoral fractures recently. Based on length of nails and shape of screws fixed in a femoral head for proximal fragment fixation, the proper nail length was in dispute. The purpose of this study was to evaluate the clinical and radiological results of a long cephalomedullary hip nail for the treatment of comminuted subtrochanteric femoral fractures. MATERIALS AND METHODS: Twenty-one consecutive patients with severe subtrochanteric femoral fractures who had undergone intramedullary fixation using long-PFNA II between March 2010 and March 2013 were followed-up for over 12 months...
June 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/28608737/preoperative-18-f-fdg-pet-ct-vs-contrast-enhanced-ct-to-identify-regional-nodal-metastasis-among-patients-with-head-and-neck-squamous-cell-carcinoma
#6
Joshua K Cho, Thomas J Ow, Andrew Y Lee, Richard V Smith, Nicolas F Schlecht, Bradley A Schiff, Andrew B Tassler, Juan Lin, Renee M Moadel, Ana Valdivia, Tony Abraham, Edwin Gulko, Matthew Neimark, Berrin Ustun, Jacqueline A Bello, Keivan Shifteh
Objective Our objective was to compare the accuracy of preoperative positron emission tomography (PET)/computed tomography (CT) and contrast-enhanced CT (CECT) in detecting cervical nodal metastases in patients treated with neck dissection and to scrutinize the ability of each modality to determine nodal stage. Study Design Case series with chart review. Setting Montefiore Medical Center, Bronx, New York. Subjects and Methods Patients who underwent neck dissection at our institution for primary treatment of head and neck squamous cell carcinoma (HNSCC) and had received preoperative PET/CT and CECT were included in this study...
June 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28599687/diagnostic-accuracy-of-multislice-ct-scan-in-the-detection-of-occult-cervical-lymph-node-metastasis-in-head-and-neck-cancers
#7
Rubia Salman, Munawar Hussain, Syed Omair Adil
OBJECTIVE: To determine the diagnostic accuracy of CECTin detecting occult cervical lymph node metastasis in primary head and neck squamous cell carcinoma (SCC) patients with clinically negative cervical nodes, keeping histopathology as gold standard. STUDY DESIGN: Cross-sectional analytical study. PLACE AND DURATION OF STUDY: Department of Radiology, Dow International Medical College, DUHS, Karachi from October 2015 till April 2016. METHODOLOGY: Two hundred patients of head and neck squamous cell carcinoma patients with clinically negative cervical nodes were enrolled at Department of Radiology, Dow International Medical College, DUHS, Karachi from October 2015 till April 2016...
May 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28588721/palliative-treatment-of-patients-with-inoperable-locally-advanced-recurrent-or-metastatic-head-and-neck-squamous-cell-cancer-using-a-low-dose-and-personalized-chemotherapeutic-regimen
#8
Rohit Bishnoi, Jeffery Bennett, David N Reisman
Inoperable or metastatic head and neck squamous cell cancer (HNSCC) is known to be associated with a poor patient prognosis. First line therapies include a Taxol, platinum-based antineoplastic and fluorouracil (FU) treatment regimen (TPF) or a platinum-based antineoplastic, FU and EGFR inhibitor treatment regimen (PFE). The toxicity of these regimens is one of the major limiting factors, particularly for palliative treatment. The present study is a retrospective study of 15 patients with HNSCC, where the treatment goal was palliative...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28584606/giant-parapharyngeal-space-pleomorphic-adenoma-causing-acute-airway-obstruction
#9
Sampan S Bist, Mahima Luthra, Vinish Agrawal, Nadia Shirazi
Primary parapharyngeal space (PPS) tumors are rare, representing only 0.5% of all head and neck neoplasms. About 80% of tumors of this space are benign, and 20% are malignant. They often pose therapeutic and diagnostic problems due to variable non-specific symptoms and the complex anatomy of this space. Pleomorphic adenoma is the most common benign tumor of this space. It presents as an asymptomatic mass causing mild bulging in the soft palate or tonsillar region, or fullness near the angle of the mandible in the neck...
May 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28583248/pediatric-phantom-dosimetry-of-kodak-9000-cone-beam-computed-tomography
#10
Juan F Yepes, Megan R Booe, Brian J Sanders, James E Jones, Ygal Ehrlich, John B Ludlow, Brandon Johnson
PURPOSE: The purpose of the study was to evaluate the radiation dose of the Kodak 9000 cone-beam computed tomography (CBCT) device for different anatomical areas using a pediatric phantom. METHODS: Absorbed doses resulting from maxillary and mandibular region three by five cm CBCT volumes of an anthropomorphic 10-year-old child phantom were acquired using optical stimulated dosimetry. Equivalent doses were calculated for radiosensitive tissues in the head and neck area, and effective dose for maxillary and mandibular examinations were calculated following the 2007 recommendations of the International Commission on Radiological Protection (ICRP)...
May 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/28577698/eliciting-preferences-for-clinical-follow-up-in-patients-with-head-and-neck-cancer-using-best-worst-scaling
#11
Michela Meregaglia, John Cairns, Salvatore Alfieri, Federica Favales, Daniela Mazzitelli, Ester Orlandi, Lisa Licitra, Paolo Bossi
OBJECTIVES: There are no commonly accepted standards for monitoring patients treated for head and neck cancer. The aim of this study was to assess patients' preferences for different aspects of follow-up. METHODS: A best-worst survey was conducted in a sample of head and neck cancer patients in clinical follow-up at the National Cancer Institute (Milan, Italy). Conditional logit regression with choice as the dependent variable was run to analyse the data. A covariate-adjusted analysis was performed in order to identify socio-demographic and clinical factors related to the selection of best-worst items...
June 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28570879/acute-onset-of-paraganglioma-of-filum-terminale-a-case-report-and-surgical-treatment
#12
Domenico Murrone, Bruno Romanelli, Giuseppe Vella, Aldo Ierardi
INTRODUCTION: Paragangliomas of filum terminale are rare benign tumors, arising from the adrenal medulla or extra-adrenal paraganglia. These lesions usually present with chronic back pain and radiculopathy and only two cases of acute neurological deficit have been reported in literature. PRESENTATION OF CASE: A case with an acute paraplegia and cauda equina syndrome due to an hemorrhagic paraganglioma of the filum terminale is described. Magnetic resonance imaging showed an intradural tumor extending from L1 to L2 compressing the cauda equina, with an intralesional and intradural bleed...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28569184/large-schwannoma-of-the-femur-a-common-tumor-at-an-unusual-site-a-case-report-and-review-of-the-literature
#13
Niranthi Perera, Chandu de Silva, Vasantha Perera
BACKGROUND: Schwannomas are benign nerve sheath tumors and are most frequently encountered as soft tissue tumors of peripheral nerves of the head and neck or the extensor extremities. Osseous involvement is very uncommon with fewer than 200 cases described in the world literature, the majority of which arise in the skull (including mandible), vertebrae, and sacrum. Long bone involvement is highly unusual and of the approximately 20 cases described thus far, only five have been documented to arise in the femur...
May 31, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28550934/a-story-in-black-and-white-radiologic-evaluation-in-the-multidisciplinary-setting
#14
REVIEW
Ali R Sepahdari, Banafsheh Salehi
Strong engagement from expert radiologists is essential in ensuring the optimal function of a multidisciplinary group focused on the treatment of head and neck cancer. Active participation in multidisciplinary conference can be among the most rewarding roles for radiologists. Despite many benefits to radiologist involvement in multidisciplinary teams, there are obstacles and challenges that can prevent full participation. This article highlights the key issues that should be considered by radiologists and multidisciplinary team leaders when planning participation in a new or existing multidisciplinary group that focuses on the care of patients with head and neck cancer...
May 25, 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/28540628/effect-of-collapse-on-the-deformity-of-the-femoral-head-neck-junction-in-osteonecrosis-of-the-femoral-head
#15
Yusuke Kubo, Goro Motomura, Satoshi Ikemura, Kazuhiko Sonoda, Takuaki Yamamoto, Yasuharu Nakashima
INTRODUCTION: The purpose of this study was to morphologically assess the effect of collapse on the deformity of the femoral head-neck junction in patients with nontraumatic osteonecrosis of the femoral head (ONFH). MATERIALS AND METHODS: From January 2005 through March 2016, magnetic resonance (MR) imaging including the oblique view was repeatedly performed before and after collapse in 24 hips of patients with ONFH (16 men, 8 women; mean age 43 years; range 23-68 years), that were the subjects of this study...
May 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28535916/efficiency-of-personal-dosimetry-methods-in-vascular-interventional-radiology
#16
Fernando Antonio Bacchim Neto, Allan Felipe Fattori Alves, Yvone Maria Mascarenhas, Guilherme Giacomini, Nadine Helena Pelegrino Bastos Maués, Patrícia Nicolucci, Carlos Clayton Macedo de Freitas, Matheus Alvarez, Diana Rodrigues de Pina
PURPOSE: The aim of the present study was to determine the efficiency of six methods for calculate the effective dose (E) that is received by health professionals during vascular interventional procedures. METHODS: We evaluated the efficiency of six methods that are currently used to estimate professionals' E, based on national and international recommendations for interventional radiology. Equivalent doses on the head, neck, chest, abdomen, feet, and hands of seven professionals were monitored during 50 vascular interventional radiology procedures...
May 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28530265/papillary-squamous-cell-carcinoma-of-the-palatine-tonsil-a-rare-cancer-of-the-head-and-neck
#17
A Serra, R Caltabiano, G Scalia, S Palmucci, P Di Mauro, S Cocuzza
Papillary squamous neoplasms of the upper respiratory tract are rare variants of squamous cell carcinomas. They are characterised by an exophytic, papillary growth and generally have favourable prognosis. The tumour has been described in the upper aerodigestive tract. In this context, most common sites of involvement are the larynx and hypopharynx, and rarely the oral cavity and oropharynx. The limited studies and small number of published cases of papillary squamous cell carcinoma of the palatine tonsil led us to make a complete analysis of this tumour by analysing the clinical, histological, radiological, virological and therapeutic aspects that are not always present in the literature...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28522186/molar-incisor-malformation-in-six-cases-description-and-diagnostic-protocol
#18
Ingvild Johnsen Brusevold, Thea Martine Granvoll Bie, Christine Sophie Baumgartner, Runa Das, Ivar Espelid
OBJECTIVE: The term molar-incisor malformation (MIM) has recently been presented in the scientific literature, where it is described as a condition with localized impaired root development. Here we present 6 recently discovered cases referred to our departments. STUDY DESIGN: The patients were enrolled in the study after referral and were examined clinically and radiologically. Two extracted teeth were further examined with micro-computed tomography or microscopy...
April 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28516046/image-quality-assessment-of-a-1-5t-dedicated-magnetic-resonance-simulator-for-radiotherapy-with-a-flexible-radio-frequency-coil-setting-using-the-standard-american-college-of-radiology-magnetic-resonance-imaging-phantom-test
#19
Oi Lei Wong, Jing Yuan, Siu Ki Yu, Kin Yin Cheung
BACKGROUND: A flexible RF coil setting has to be used on an MR-simulator (MR-sim) in the head and neck simulation scan for radiotherapy (RT) purpose, while the image quality might be compromised due to the sub-optimized flexible coil compared to the normal diagnostic radiological (DR) head coil. In this study, we assessed the image quality of an MR-sim by conducting the standard American College of Radiology (ACR) MRI phantom test on a 1.5T MR-sim under RT-setting and comparing it to DR-setting...
April 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28511526/angiolymphoid-hyperplasia-with-eosinophilia-involving-the-occipital-artery-case-report-and-review-of-literature
#20
Laia Fite-Trepat, Miriam Martos-Fernandez, Margarita Alberola-Ferranti, Alba De Pablo-Garcia-Cuenca, Coro Bescosatin
Angiolymphoid Hyperplasia with Eosinophilia (ALHE) is an atypical vascular tumour occurring primarily in the head and neck area, which must be distinguished from Kimura's disease. The lesions can appear as single or multiple grouped intradermal papules or subcutaneous nodules. We report a rare case of ALHE in a 57-year-old female with a large lesion of three nodules involving the right occipital artery which had a long term evolution and we treated it by surgical excision. The definitive histopathological diagnosis was ALHE...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
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