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Head and neck radiology

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https://www.readbyqxmd.com/read/28336192/radiological-morphology-variances-of-transient-osteoporosis-of-the-hip
#1
Ryosuke Yamaguchi, Takuaki Yamamoto, Goro Motomura, Satoshi Ikemura, Kenyu Iwasaki, Garida Zhao, Yukihide Iwamoto
BACKGROUND: Although several morphological abnormalities or variances of the hip joint have been proposed to be associated with hip joint degeneration, few studies have investigated any radiological features in patients with transient osteoporosis of the hip (TOH). The purpose of this study is to evaluate the morphological variances of the hip joint in TOH patients radiographically. METHODS: The TOH group consisted of 31 hips in 31 patients. Age- and gender-matched asymptomatic hips in patients with unilateral osteonecrosis of the femoral head were served as controls...
March 20, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28318917/radiological-changes-with-magnetic-resonance-imaging-and-computed-tomography-after-irradiating-minipig-mandibles-the-role-of-t2-spir-mixed-signal-intensities-in-the-detection-of-osteoradionecrosis
#2
Lucas J Poort, Alida A Postma, Annika A R Stadler, Roland A Böckmann, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Radiotherapy in the head and neck can induce several radiologically detectable changes in bone, osteoradionecrosis (ORN) among them. The purpose is to investigate radiological changes in mandibular bone after irradiation with various doses with and without surgery and to determine imaging characteristics of radiotherapy and ORN in an animal model. MATERIALS AND METHODS: Sixteen Göttingen minipigs were divided into groups and were irradiated with two fractions with equivalent doses of 0, 25, 50 and 70 Gray...
February 12, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28302228/anaesthetic-management-in-a-child-with-goldenhar-syndrome
#3
Waqas Ahmed Khan, Bushra Salim, Ausaf Ahmed Khan, Shakaib Chughtai
Goldenhar syndrome is a congenital disorder involving deformities of the face. It usually affects one side of the face only and poses significant challenges in the airway management. We herein, report an 8-year boy, known case of Goldenhar syndrome, who presented to our radiology suite for a magnetic resonance imaging (MRI) brain, followed by a computed tomography (CT) scan brain. The boy had various features of Goldenhar syndrome, e.g. cleft palate, absent right eye and ear, right mandibular hypoplasia, micrognathia, and preauricular tags...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28299254/volumetric-analysis-of-bone-substitute-material-performance-within-the-human-sinus-cavity-of-former-head-and-neck-cancer-patients-a-prospective-randomized-clinical-trial
#4
Jonas Lorenz, Kathrin Eichler, Mike Barbeck, Henriette Lerner, Stefan Stübinger, Catherine Seipel, Thomas J Vogl, Adorján F Kovács, Shahram Ghanaati, Robert A Sader
BACKGROUND: In numerous animal and human studies, it could be detected that in bone augmentation procedures, material's physicochemical characteristics can influence the cellular inflammatory pattern and therefore the integration in the host tissue. Histological, histomorphometrical, and clinical analyses of the integration of the biomaterial in the surrounding tissue are well established methodologies; however, they do not make a statement on volume and density changes of the augmented biomaterial...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28294349/malignant-glomus-tumors-of-the-head-and-neck-in-children-and-adults-evaluation-and-management
#5
Nikolaus E Wolter, Eelam Adil, Alexandria L Irace, Annette Werger, Antonio R Perez-Atayde, Christopher Weldon, Darren B Orbach, Carlos Rodriguez-Galindo, Reza Rahbar
OBJECTIVES/HYPOTHESIS: To describe our current multidisciplinary approach to pediatric malignant glomus tumors of the head and neck and review the current literature. STUDY DESIGN: Retrospective chart review at a tertiary referral children's hospital and a comprehensive literature review. METHODS: A comprehensive literature search of PubMed, Embase, Web of Science, Google Scholar, and EBSCO with respect to malignant glomus tumors of the head and neck was conducted...
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28288481/pleural-metastasis-in-head-and-neck-cancer-imaging-findings-and-clinical-impact
#6
Bing Wang, Sonia Betancourt Cuellar, Lawrence E Ginsberg
OBJECTIVE: The aim of this study was to present the imaging findings of pleural metastases from head and neck cancer and correlate them with prognosis for overall survival, which to our knowledge have not received much attention in radiology literature. METHODS: We reviewed 23 cases of head and neck cancer with pleural metastases that were seen on head and neck imaging. Computed tomography (CT), magnetic resonance imaging, and positron emission tomography/CT imaging findings were reviewed...
March 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28287938/soft-tissue-sarcomas-of-the-abdomen-and-pelvis-radiologic-pathologic-features-part-1-common-sarcomas-from-the-radiologic-pathology-archives
#7
Angela D Levy, Maria A Manning, Waddah B Al-Refaie, Markku M Miettinen
Soft-tissue sarcomas are a diverse group of rare mesenchymal malignancies that can arise at any location in the body and affect all age groups. These sarcomas are most common in the extremities, trunk wall, retroperitoneum, and head and neck. In the adult population, soft-tissue sarcomas arising in the abdomen and pelvis are often large masses at the time of diagnosis because they are usually clinically silent or cause vague or mild symptoms until they invade or compress vital organs. In contrast, soft-tissue sarcomas arising from the abdominal wall come to clinical attention earlier in the course of disease because they cause a palpable mass, abdominal wall deformity, or pain that is more clinically apparent...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28260283/-some-hot-topics-in-clinical-research-of-head-neck-radiology
#8
F Y Man, Z C Wang
No abstract text is available yet for this article.
February 21, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28231582/radiomics-in-head-and-neck-cancer-extracting-valuable-information-from-data-beyond-recognition
#9
Kathrin Scheckenbach, Lena Colter, Martin Wagenmann
In oncology, biomarkers that describe the characteristics of a malignancy on different levels (clinical, histological, molecular) and the patient's outcome and treatment response are increasingly integrated into the clinical routine. Extensive screening tools, "omics," offer incredible opportunities and vast amounts of data. During the last years, the field of "omics" gained a new promising partner, the "radiomics." Based on radiological imaging, multiple features can be extracted and linked to clinical, genomic, and histopathological data from other sources...
2017: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/28230919/maxillary-ameloblastoma-factors-associated-with-risk-of-recurrence
#10
Rong Yang, Zheqi Liu, Canbang Peng, Wei Cao, Tong Ji
BACKGROUND: Maxillary ameloblastomas are rare and associated with an aggressive course because of the anatomic composition of the maxilla and adjacent structures. The risk factors associated with recurrence were analyzed in this retrospective study. METHODS: Cases of maxillary ameloblastoma reported in a tertiary hospital from 2005 to 2015 were analyzed to identify clinicopathological and radiological factors associated with recurrence using univariate and multivariate Cox regression analyses...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28210801/patient-radiation-doses-and-reference-levels-in-pediatric-interventional-radiology
#11
Bouchra Habib Geryes, Adeline Bak, Julie Lachaux, Augustin Ozanne, Nathalie Boddaert, Francis Brunelle, Olivier Naggara, Guillaume Saliou
OBJECTIVES: To describe, in a multicentric paediatric population, reference levels (RLs) for three interventional radiological procedures. METHODS: From January 2012 to March 2015, children scheduled for an interventional radiological procedure in two French tertiary centres were retrospectively included and divided into four groups according to age: children younger than 2 years (A1), aged 2-7 years (A5), 8-12 years (A10) and 13-18 years (A15). Three procedures were identified: cerebral digital subtraction angiography (DSA), brain arteriovenous malformation (bAVM) embolization, and head and neck superficial vascular malformation (SVM) percutaneous sclerotherapy...
February 16, 2017: European Radiology
https://www.readbyqxmd.com/read/28167693/primary-gastric-plasmacytoma-a-rare-entity
#12
Rui Caetano Oliveira, Pedro Amaro, Maria José Julião, Maria Augusta Cipriano
Extramedullary plasmacytomas (EP) are tumours composed by a monoclonal population of plasma cells that arise in extraosseus tissues, comprising <5% of all plasma cell neoplasms. Usually, EP arise in the head and neck region, and the stomach is the second most common location-gastric plasmacytoma (GP). Clinical and radiological manifestations are unspecific and may mimic other tumours like gastric adenocarcinomas, gastric stromal tumours and lymphomas, mainly marginal cell lymphoma (MALT lymphoma) and usually definitive diagnosis is provided by pathological evaluation...
February 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28166167/stepwise-percutaneous-leverage-technique-to-avoid-posterior-interosseous-nerve-injury-in-pediatric-radial-neck-fracture
#13
Wan-Sun Choi, Kyeong-Jin Han, Doo-Hyung Lee, Ga-Eun Lee, Heon-Ju Kweon, Jae-Ho Cho
OBJECTIVES: To introduce a stepwise percutaneous leverage technique to avoid posterior interosseous nerve (PIN) injury in pediatric patients with radial neck fractures and to evaluate the clinical outcome and the predisposing factors affecting the outcome. DESIGN: Retrospective case series study. SETTING: University level 1 trauma center. PATIENTS: Thirty-four children with a radial neck fracture, who were treated using a stepwise percutaneous leverage technique, were included in the study...
January 24, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28162883/posterior-open-wedge-osteotomy-of-the-scapula-neck-for-the-treatment-of-advanced-shoulder-osteoarthritis-with-posterior-head-migration-in-young-patients
#14
Reinhold Ortmaier, Philipp Moroder, Corinna Hirzinger, Herbert Resch
BACKGROUND: Treatment of young, active patients with symptomatic glenohumeral osteoarthritis, excessive glenoid retroversion, and static posterior humeral subluxation is challenging. Correction of glenoid retroversion may lead to centric loading and perhaps recenter the humeral head. We describe the functional and radiologic outcomes after corrective osteotomy of the glenoid in this population of patients. MATERIALS AND METHODS: In this retrospective study, we included 10 shoulders (8 patients) that were observed for a mean of 33...
February 2, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28162264/nonfunctioning-small-incidental-pancreatic-neuroendocrine-tumors-results-of-a-nonoperative-approach-cohort
#15
Catalina Uribe Galeano, Joan Fabregat Prous, Juli Busquets Barenys, Nuria Pelaez Serra, Lluís Secanella Medayo, Emilio Ramos Rubio, Sandra Ruiz Osuna, Carlos Villabona Artero
OBJECTIVE: The availability of new imaging techniques has conditioned an increase in the incidental diagnosis of small nonfunctioning pancreatic neuroendocrine tumors (PNET-NF). The best treatment is controversial, some authors advise a conservative approach in selected cases. Our aim is to analyze the evolution of incidental, small size PNET-NF, treated with clinical follow-up without surgery. METHODS: We performed a retrospective analysis of a prospective database of patients diagnosed incidentally with PNET-NF since November 2007 to September 2015...
February 2, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28153757/sinonasal-hemangioma-diagnosis-treatment-and-follow-up-of-37-patients-at-a-single-center
#16
Jong Seung Kim, Sam Hyun Kwon
PURPOSE: Hemangioma is a common benign vascular lesion of the head and neck region. It rarely involves the mucous membranes of the nasal cavity and paranasal sinuses. It should be added to the differential diagnosis of nasal cavity masses when the presenting symptoms are epistaxis or nasal obstruction. MATERIALS AND METHODS: A retrospective chart review was conducted of a histologic diagnosis of lobular capillary hemangioma or cavernous hemangioma of the sinonasal mucous membranes treated at the Chonbuk National University Hospital from January 1995 through December 2015...
January 5, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28149187/biochemical-analysis-and-bone-remodeling-in-response-to-oophorectomy-and-aquatic-training
#17
Helena Ribeiro Souza, Ana Paula Girol, Adriana Paula Sanchez Schiaveto, Mairto Roberis Geromel, Melina Mizusaki Iyomasa, Maurício Ferraz DE Arruda
OBJECTIVE: To investigate whether swimming could prevent bone loss and could be indicated to assist in treatment of osteoporosis. METHODS: Female rats were divided into 4 groups (n=6), two of them were oophorectomized. Animals from two groups, one oophorectomized and another not oophorectomized, underwent aquatic training for eight weeks. After training, the animals were sacrificed and their blood was collected for calcium and alkaline phosphatase serum dosage; the femur was removed and subjected to radiological and histological densitometry analysis to assess bone loss and osteoclast counting on femoral head and neck...
September 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28140608/rosai-dorfman-disease-manifestations-outside-of-the-head-and-neck
#18
Winnie A Mar, Jonathan H Yu, Martha Gracia Knuttinen, Jeanne M Horowitz, Odile David, Andrew Wilbur, Christine O Menias
OBJECTIVE: Rosai-Dorfman disease (RDD) is an uncommon benign histiocytic disorder. Extranodal involvement occurs in 43% and most commonly involves the head and neck, skin, and bones. We review less common imaging findings outside the head and neck. CONCLUSION: The imaging manifestations of RDD overlap with a variety of neoplastic and nonneoplastic conditions. Confirmation of an RDD diagnosis is based on specific histologic features. Radiologic assessment is used to rule out multifocality on initial workup and to evaluate treatment response...
April 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28109633/the-american-college-of-radiology-and-the-american-brachytherapy-society-practice-parameter-for-the-performance-of-low-dose-rate-brachytherapy
#19
Akila N Viswanathan, Beth A Erickson, Geoffrey S Ibbott, William Small, Patricia J Eifel
Brachytherapy is the use of radionuclides to treat malignancies or benign conditions by means of a radiation source placed close to or into the tumor or treatment site. This practice parameter refers only to the use of radionuclide brachytherapy. Brachytherapy alone or combined with external beam therapy plays an important role in the management and treatment of patients with cancer. Low-dose-rate (LDR) brachytherapy has traditionally been used for treating prostate, head and neck, breast, cervical, and endometrial cancers as well as obstructive bile duct, esophageal, or bronchial lesions...
January 2017: Brachytherapy
https://www.readbyqxmd.com/read/28107235/an-experimental-biomechanical-study-on-artificial-atlantoodontoid-joint-replacement-in-dogs
#20
Quanjin Zang, Yanming Liu, Dengfeng Wang, Haopeng Li, Pinglin Yang, Dong Wang, Xijing He
STUDY DESIGN: This study tested the biomechanics of artificial atlantoodontoid joint replacement (AAOJR) in a dog model. Dogs were divided into the artificial AAOJR group (n=10), the decompression group (n=10), and the healthy control group (n=10) using a random number table. OBJECTIVE: To evaluate whether the use of AAOJR for repair of atlantoaxial instability retains rotation and restores stability. SUMMARY OF BACKGROUND DATA: Atlantoaxial instability is characterized by excessive movement or laxity at the junction between the atlas (C1) and axis (C2)...
February 2017: Clinical Spine Surgery
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