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Head and neck radiology

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https://www.readbyqxmd.com/read/29033121/prognostic-significance-of-extranodal-extension-in-head-and-neck-squamous-cell-carcinoma-cn0-patients-with-occult-metastatic-neck-nodes
#1
Joan Lop, Antoni Rigó, Alberto Codina, Julia de Juan, Miquel Quer, Xavier León
INTRODUCTION AND OBJECTIVES: Extranodal extension in nodal metastases is an independent adverse prognostic factor in head and neck squamous cell carcinoma patients. However, few studies specifically address the subgroup of patients with no clinical evidence of nodal disease. MATERIAL AND METHODS: We retrospectively analysed data from 348 head and neck squamous cell carcinoma patients without any previous treatment and lacking clinical or radiological evidence of neck node metastases during the initial workup, treated with an elective neck dissection between 1992-2014...
October 12, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/29024572/radiological-manifestations-of-immune-related-adverse-effects-observed-in-patients-with-melanoma-undergoing-immunotherapy
#2
Parveen Sidhu, Alexander M Menzies, Georgina Long, Matteo Carlino, Shirleen Lorens, Rony Kapoor
Immunotherapy drugs work by stimulating the patient's own immune system to recognize and destroy cancer cells. This subclass of drugs is increasingly administered to patients with advanced melanoma. They are also commonly incorporated into other cancer therapies such as non-small cell lung cancer, renal cancer, head and neck cancers and Hodgkin lymphoma. The most commonly administered immunotherapeutic agents in the treatment of melanoma include programmed cell death protein 1 (PD-1) inhibitors, cytotoxic T-lymphocyte antigen 4 (CTLA-4) inhibitors and a subclass of cytokines...
October 11, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28993350/nodular-fasciitis-of-soft-tissue-over-the-mandible
#3
Daniel Yeomans, Ali Qureishi, Ketan Shah, Stuart Winter
Nodular fasciitis (NF) is an unusual, benign condition which can mimic more sinister, sarcomatous lesions both clinically and histologically. This case report presents a 35-year-old male, with a rapidly growing mass on the border of his left mandible, referred to a specialist head and neck unit. The initial presentation, radiology and cytology were initially inconclusive and the possibility of a malignant process was considered. Final histology was that of NF, the treatment of which is complete surgical excision...
October 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28975402/isolated-radial-neck-delayed-union-nonunion-after-conservative-treatment-in-adults-two-case-reports-and-a-literature-review
#4
Christa Babst, Alexander Brunner, Reto Babst
BACKGROUND: Treatment recommendations for isolated radial neck delayed union/nonunion are sparse, but include mainly conservative treatment, electro-stimulation, bone grafting, open reduction and internal fixation (ORIF) and radial head resection. The purpose of this study was to perform a literature review on isolated delayed union/nonunion of radial neck fractures and to evaluate the reported outcomes of proposed treatment strategies. Furthermore, we aimed to generate data-based recommendations for this rare pathology...
October 3, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28969257/role-of-neck-dissection-in-clinical-t3n0m0-lesion-of-oral-cavity-changing-trend
#5
Arjun Dass, Surinder K Singhal, Rps Punia, Nitin Gupta, Hitesh Verma, Shilpi Budhiraja, Minakshi Salaria
INTRODUCTION: Neck dissection is an important part in the management of head and neck malignancies especially in terms of control of nodal metastasis. The study is focused on evaluating the profile of lymph nodes in T3N0M0 lesion of different subsides of oral cavity. AIM: To evaluate the utility of neck dissection in T3N0M0 stage of carcinomas of the different region of oral cavity. MATERIALS AND METHODS: Ninety patients aged 20 to 70 years underwent treatment for carcinoma of the oral cavity at our center between 2005 and 2013...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28967052/higher-uhmwpe-wear-rate-in-cementless-compared-with-cemented-cups-with-the-saturne%C3%A2-dual-mobility-acetabular-system
#6
Steffan Tabori-Jensen, Christina Frølich, Torben B Hansen, Søren Bøvling, Morten Homilius, Maiken Stilling
INTRODUCTION: Dual mobility (DM) total hip arthroplasty (THA) may reduce dislocation risk, but might increase the risk of high polyethylene (PE) wear due to double wearing surfaces. METHODS: 127 patients (97 female) with 129 hips operated with THA after displaced femoral neck fracture FNF between 2005 and 2011, were seen for a cross-sectional clinical follow-up. Acetabular components were Saturne® DM cups with 28mm chrome-cobalt heads in UHMWPE. Cementless cups (n = 73) were hydroxyapatite coated...
September 11, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/28960819/circumferential-reconstruction-of-subaxial-cervical-and-cervicothoracic-spine-by-simultaneously-combined-anterior-posterior-approaches-in-the-sitting-position
#7
Yue Han, Xin-Long Ma, Yong-Cheng Hu, Jun Miao, Ji-Dong Zhang, Jian-Qiang Bai, Qun Xia
OBJECTIVE: To introduce and analyze the feasibility of a new surgical strategy for circumferential reconstruction of subaxial cervical and cervicothoracic spine by simultaneously combined anterior-posterior approach in the sitting position. METHODS: A retrospective review was performed for seven patients who underwent the above surgical procedure between July 2011 and January 2015. Among the seven patients, there were six men and one woman, with an average age of 52 years (range, 36-79 years)...
August 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28960745/real-world-mri-experience-with-non-conditional-and-conditional-cardiac-rhythm-devices-after-magnasafe
#8
Steve Mason, Jeffrey S Osborn, Ritesh Dhar, Allison Tonkin, Jon-David Ethington, Viet Le, Jose Benuzillo, Donald L Lappe, Kirk U Knowlton, T Jared Bunch, Jeffrey L Anderson
INTRODUCTION: The recent MagnaSafe Registry demonstrated safety of non-thoracic magnetic resonance imaging (MRI) with non-conditional cardiac implantable electronic devices (CIEDs). However, independent validation and extension to thoracic MRIs are needed. METHODS AND RESULTS: We prospectively examined 178 consecutive patients with CIEDs who underwent 212 MRI scans (62 with implantable cardioverter/defibrillators) for clinical reasons between February 2014 and August 2016...
September 28, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28958658/a-minimum-ten-years-of-follow-up-of-alumina-head-on-delta-liner-total-hip-arthroplasty
#9
Won-Sik Choy, Yong-Han Cha, Chung-Youb Jeon, Kyu-Sang Lee, Ha-Yong Kim
BACKGROUND: In the early days when delta ceramics were developed, there was a period of using delta ceramic liner and alumina ceramic head. Therefore, the purpose of this study is to investigate the clinical and radiological outcomes of total hip arthroplasty using delta ceramic liner on alumina ceramic head after a minimum of 10 years of follow-up and to evaluate problems of early delta ceramic liner. METHODS: Alumina on delta cementless total hip arthroplasty was performed in 92 hips (85 patients) from August 2005 to March 2007 at our hospital...
September 7, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28948056/could-hallucinogens-induce-permanent-pupillary-changes-in-ab-users-a-case-report-from-new-zealand
#10
Ahmed Al-Imam
An eighteen-year-old female patient of the Caucasian ethnicity from Australasia presented with a persistently dilated pupil causing her discomfort and occasional burning sensation when she is outdoors due to oversensitivity to sunlight. However, her pupillary reaction to light (pupillary light reflex) was intact. The patient is a known user of psychedelic substances (entheogens) including LSD, NBOMe, psilocybin, and DMT. The condition affects both eyes to the same extent. Thorough medical, neurological, and radiological examinations, including an EEG and an MRI of the head and neck region, were completely normal...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28946910/primary-paranasal-sinus-hyalinizing-clear-cell-carcinoma-a-case-report
#11
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/28940671/osteology-and-radiology-of-the-maned-wolf-chrysocyon-brachyurus-pelvic-limb
#12
R C Siqueira, S C Rahal, L R Inamassu, M J Mamprim, M Felix, M S Castilho, L R Mesquita, V L Ribeiro, C R Teixeira, F B Rassy
This study describes the osteology and radiology of the pelvic limb in maned wolves. Ten (five live and five dead) maned wolves (Chrysocyon brachyurus), five males and five females, aged from 2 to 7 years old were used. Digital radiographs were taken and recorded for both pelvic limbs in all animals. Osteology was correlated with the radiographic images. The pelvis had a rectangular shape, and the obturator foramen (foramen obturatum) was oval. The femoral neck (collum femoris) was short and thick. The greater trochanter (trochanter major) extended proximally to near the dorsum of the femoral head (caput ossis femoris)...
September 20, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28916885/geometric-analysis-and-clinical-outcome-of-two-cemented-stems-for-primary-total-hip-replacement-with-and-without-modular-necks
#13
Marcel Haversath, Christine Wendelborn, Marcus Jäger, Boris Schmidt, Wojciech Kowalczyk, Stefan Landgraeber
INTRODUCTION: Restoration of the physiological biomechanical principles of the hip is crucial in total hip replacement. The aim of this study was to compare an arthroplasty system with different offset options (a: Exeter(®)) with a dual-modular stem (b: Profemur Xm(®)). MATERIALS AND METHODS: A local and an inertial coordinate system were used to assist the description of the components' assembly in the prosthesis. A resection line of the femoral head in standard position was added to the arthroplasties and geometric parameters were measured...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28916133/a-modified-deltoid-splitting-approach-with-axillary-nerve-bundle-mobilization-for-proximal-humeral-fracture-fixation
#14
Young Ho Shin, Young Ho Lee, Ho Sung Choi, Min Bom Kim, Sung Hee Pyo, Goo Hyun Baek
INTRODUCTION: The deltopectoral and the deltoid splitting approach are commonly used for the treatment of proximal humeral fractures. While the deltopectoral approach requires massive soft tissue devascularization, the deltoid splitting approach needs an additional skipped incision to avoid axillary nerve injury. The purpose of this study was to describe a modified anterolateral deltoid splitting approach with axillary nerve bundle mobilization in the treatment of proximal humeral fractures and to assess its radiologic and clinical outcomes...
September 8, 2017: Injury
https://www.readbyqxmd.com/read/28913301/concordant-surgical-treatment-non-melanocytic-skin-cancer-of-the-head-and-neck
#15
Wan Cheol Ryu, In Chang Koh, Yong Hae Lee, Jong Hyun Cha, Sang Il Kim, Chang Gyun Kim
BACKGROUND: Skin cancer is the most common type of cancer. Of the 4 million skin lesions excised annually worldwide, approximately 2 million are considered cancerous. In this study, we aimed to describe a regional experience with skin cancers treated by a single senior surgeon and to provide a treatment algorithm. METHODS: The medical records of 176 patients with head and neck non-melanocytic skin cancer (NMSC) who were treated by a single surgeon at our institution between January 2010 and May 2016 were retrospectively reviewed, and their data (age, sex, pathological type, tumor location/size, treatment modality) were analyzed...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28902001/guided-growth-of-the-proximal-femur-for-the-management-of-hip-dysplasia-in-children-with-cerebral-palsy
#16
Nicola Portinaro, Marco Turati, Matteo Cometto, Marco Bigoni, Jon R Davids, Artemisia Panou
BACKGROUND: Progressive hip displacement is one of the most common and debilitating deformities seen in children with cerebral palsy (CP). The aim of this study was to evaluate the results of temporary medial hemiepiphysiodesis of the proximal femur (TMH-PF) using a transphyseal screw to control hip migration during growth in children with CP. METHODS: This was a retrospective study of children with CP and hip dysplasia, age 4 to 11 years and GMFCS levels III-V...
September 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28845380/endovascular-extraction-of-a-needle-from-the-internal-carotid-artery-a-novel-approach-to-a-controversial-dental-misadventure
#17
Jonathan P Giurintano, Jessica Somerville, Merry Sebelik, Daniel Hoit, L Madison Michael, Courtney B Shires
Objective  To review the literature concerning the management of dental needles broken off into the deep spaces of the neck, to report what we believe is the first case of a fractured dental needle migrating into the jugular foramen, and the unconventional use of endovascular intervention to retrieve the needle fragment. Design  Case report with review of literature. Setting  Academic tertiary care center. Participants  Intervention was performed by the otolaryngology-head and neck surgery, vascular surgery, and neurovascular interventional radiology teams...
July 2017: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/28836142/cystic-lesions-of-the-parotid-gland-radiologic-pathologic-correlation-according-to-the-latest-world-health-organization-2017-classification-of-head-and-neck-tumours
#18
REVIEW
Hirotaka Takita, Tohru Takeshita, Taro Shimono, Hiroko Tanaka, Hiroyoshi Iguchi, Shigeo Hashimoto, Yuko Kuwae, Masahiko Ohsawa, Yukio Miki
The latest World Health Organization 2017 Classification of Head and Neck Tumours includes a new chapter on tumors and tumor-like lesions of the neck and lymph nodes. Tumor-like lesions include a variety of cystic lesions of the parotid gland. Cystic lesions of the parotid gland can be divided into three groups: non-neoplastic cysts, benign tumors with macrocystic change, and malignant tumors with macrocystic change. It is important to distinguish these lesions from one another because treatment and patient management differ among the three groups...
August 23, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28836026/individual-radiation-exposure-from-computed-tomography-a-survey-of-paediatric-practice-in-french-university-hospitals-2010-2013
#19
Neige M Y Journy, Serge Dreuil, Nathalie Boddaert, Jean-François Chateil, Didier Defez, Hubert Ducou-le-Pointe, Jean-Marc Garcier, Joël Guersen, Bouchra Habib Geryes, Andreas Jahnen, Choonsik Lee, Jacqueline Payen-de-la-Garanderie, Jean-Pierre Pracros, Dominique Sirinelli, Isabelle Thierry-Chef, Marie-Odile Bernier
OBJECTIVES: To describe computed tomography (CT) scanning parameters, volume CT dose index (CTDIvol) and dose-length product (DLP) in paediatric practice and compare them to current diagnostic reference levels (DRLs). METHODS: The survey was conducted in radiology departments of six major university hospitals in France in 2010-2013. Data collection was automatised to extract and standardise information on scanning parameters from DICOM-header files. CTDIvol and DLP were estimated based on Monte Carlo transport simulation and computational reference phantoms...
August 23, 2017: European Radiology
https://www.readbyqxmd.com/read/28834636/intraosseous-rosai-dorfman-disease-diagnosed-by-touch-imprint-cytology-evaluation-a-case-series
#20
Avani A Pendse, Sara E Wobker, Kevin G Greene, Scott V Smith, Robert J Esther, Leslie G Dodd
Sinus histiocytosis with massive lymphadenopathy, also known as Rosai-Dorfman disease (RDD) is a rare benign disorder that primarily affects the lymph nodes. Localized lymphadenopathy is the most common clinical manifestation of this disorder. However, RDD has been described in several extra-nodal sites including the head and neck region, soft tissue, skin, upper respiratory tract, gastro-intestinal tract and central nervous system (CNS). Involvement of the bone is considered very rare, occurring in less than 10% patients...
August 23, 2017: Diagnostic Cytopathology
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