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Head and neck radiology

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https://www.readbyqxmd.com/read/28530265/papillary-squamous-cell-carcinoma-of-the-palatine-tonsil-a-rare-cancer-of-the-head-and-neck
#1
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
#2
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
#3
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
#4
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
https://www.readbyqxmd.com/read/28503760/the-penetrance-of-paraganglioma-and-pheochromocytoma-in-sdhb-germline-mutation-carriers
#5
Johannes A Rijken, Nicolasine D Niemeijer, Marianne A Jonker, Karin Eijkelenkamp, Jeroen C Jansen, Anouk van Berkel, Henri J L M Timmers, Henricus P M Kunst, Peter H L T Bisschop, Michiel N Kerstens, Koen M A Dreijerink, Marieke F van Dooren, Anouk N A van der Horst-Schrivers, Frederik J Hes, C René Leemans, Eleonora P M Corssmit, Erik F Hensen
Germline mutations in SDHB predispose to hereditary paraganglioma syndrome type 4. The risk of developing paraganglioma (PGL) or pheochromocytoma (PHEO) in SDHB mutation carriers is subject of recent debate. In the present nationwide cohort study of SDHB mutation carriers identified by the clinical genetics centers of the Netherlands, we have calculated the penetrance of SDHB associated tumors using a novel maximum likelihood estimator. This estimator addresses ascertainment bias and missing data on pedigree size and structure...
May 14, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28501095/imaging-of-igg4-related-disease-of-the-head-and-neck
#6
REVIEW
A Thompson, A Whyte
IgG4-related disease is a systemic, inflammatory disorder typically involving multiple organ systems. Several eponymous conditions described previously in the clinical and radiology literature are now recognised to be part of the IgG4-related disease spectrum. This includes multiple manifestations in the head and neck region, which are the subject of this review. Imaging can occasionally suggest the specific diagnosis of IgG4 disease. More commonly, it will be included in a limited differential diagnosis that requires clarification with the aid of image-guided biopsy...
May 10, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28484679/rare-solitary-fibrous-tumor-in-the-pediatric-neck-a-case-report-and-review-of-the-literature
#7
G Zachary White, Eric L Cox, Erich J Schwartz, Shant A Korkigian
Solitary fibrous tumors (SFT) are a rare type of mesenchymal-derived tumor not commonly found in the pediatric population, especially in the head and neck. Tumors of this nature are most commonly seen in the adult population and are identified with unique immunohistochemical markers, specifically signal transducer and activator of transcription 6 (STAT6) and hematopoietic progenitor cell antigen (CD34). Including SFTs in the differential diagnosis while working up a mass can be difficult considering their relatively non-descript appearance on imaging and the low yield immunohistochemical staining that must be ordered to confirm diagnosis...
April 6, 2017: Curēus
https://www.readbyqxmd.com/read/28479702/inflammatory-myofibroblastic-tumor-of-mandible-a-rare-case-report-and-review-of-literature
#8
Rajani Korlepara, Venkateswara Rao Guttikonda, Jayakiran Madala, Sravya Taneeru
Inflammatory pseudotumor is a term given to different neoplastic and nonneoplastic entities that have a common histological appearance, which comprises spindle cell proliferation with a prominent chronic inflammatory cell infiltrate. Inflammatory myofibroblastic tumor (IMT) is an uncommon lesion with distinctive clinical, pathological and molecular features and is considered to be pseudotumor for the past two decades due to its appearance. IMT is an intermediate soft tissue tumor which was first observed in lungs...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28457386/first-world-report-of-internal-power-cable-repair-in-left-ventricular-assist-device-jarvik-2000-case-report
#9
C G Sassi, M Cameli, A Dokollari, F Diciolla, S Scolletta, C Ricci, P Lucatelli, S Mondillo, M Maccherini
BACKGROUND: There are limited clinical reports concerning internal power cable fixing in left ventricular assist device (L-VAD) patients. Actually there are no reports in the literature about Jarvik 2000 internal cable repair. We show the first description of a technique for surgical reparation of such a fatal complication. PATIENT HISTORY: The patient was a 62-year-old woman who had L-VAD implantation (Jarvik 2000) with outflow graft apposition in descending thoracic aorta through left thoracotomy access, in 2009...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28451716/-interventional-radiology-in-the-head-and-neck-region
#10
C Mayer, E Hattingen, H Schild, F Bootz, A Schröck
In interventional neuroradiology, endovascular embolization represents an important and helpful tool in the treatment of multiple head and neck diseases. These interventional procedures may be performed with curative intent, to reduce the surgical risk within a multimodal treatment concept, or to improve or at least maintain a good quality of life within a palliative therapy concept. In addition to a good understanding of disease pathology, knowledge of vascular anatomy, including collateral vessels and dangerous extracranial-intracranial anastomoses, is essential for successful treatment, as is implementation of an established technique using appropriate material...
April 27, 2017: HNO
https://www.readbyqxmd.com/read/28449168/mri-sequences-in-head-neck-radiology-state-of-the-art
#11
Gerlig Widmann, Benjamin Henninger, Christian Kremser, Werner Jaschke
Background Magnetic resonance imaging (MRI) has become an essential imaging modality for the evaluation of head & neck pathologies. However, the diagnostic power of MRI is strongly related to the appropriate selection and interpretation of imaging protocols and sequences. The aim of this article is to review state-of-the-art sequences for the clinical routine in head & neck MRI and to describe the evidence for which medical question these sequences and techniques are useful. Method Literature review of state-of-the-art sequences in head & neck MRI...
May 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28439612/-imaging-of-the-paranasal-sinuses-and-anterior-skull-base
#12
S Greschus, F Albert, K W G Eichhorn
Due to the complex anatomy of the anterior skull base and paranasal sinuses, radiologic diagnostics in this area are challenging. Magnetic resonance imaging (MRI) and computed tomography (CT) are the primary indicated modalities. Guidelines helping to select the appropriate modality have been published by the German Society of Head and Neck Radiology and the Society of Otorhinolaryngology. The present article presents an overview of the current radiologic procedures and their optimized implementation using clinical examples...
April 21, 2017: HNO
https://www.readbyqxmd.com/read/28435761/dual-energy-ct-in-head-and-neck-imaging
#13
REVIEW
Elise D Roele, Veronique C M L Timmer, Lauretta A A Vaassen, Anna M J L van Kroonenburgh, A A Postma
PURPOSE OF REVIEW: To explain the technique of Dual-energy CT (DECT) and highlight its applications and advantages in head and neck radiology. RECENT FINDINGS: Using DECT, additional datasets can be created next to conventional images. In head and neck radiology, three material decomposition algorithms can be used for improved lesion detection and delineation of the tumor. Iodine concentration measurements can aid in differentiating malignant from nonmalignant lymph nodes and benign posttreatment changes from tumor recurrence...
2017: Current Radiology Reports
https://www.readbyqxmd.com/read/28417836/cervical-spine-status-of-pilots-and-air-controllers-of-airborne-early-warning-and-control-aircraft
#14
Young Ho Shin, Chul Yun, Andrew Hogyu Han
INTRODUCTION: Many countries have developed their own airborne early warning and control (AEW&C) systems for use in surveying their territorial sky in real time. However, a review of the literature suggests that no studies have been conducted to analyze the cervical spine of pilots and air-controllers of AEW&C aircraft. METHODS: The study subjects were 80 pilots and air-controllers of AEW&C aircraft with a period of service of > 1 yr and had data on physical examinations, simple radiographs and functional scores of the axial skeleton, and questionnaires about lifestyle and working conditions...
May 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28393061/nasopharyngeal-carcinoma-with-cystic-cervical-metastasis-masquerading-as-branchial-cleft-cyst-a-potential-pitfall-in-diagnosis-and-management
#15
Lum Sai-Guan, Kong Min-Han, Ngan Kah-Wai, Mohd-Razif Mohamad-Yunus
INTRODUCTION: Most metastatic lymph nodes from head and neck malignancy are solid. Cystic nodes are found in 33% - 61% of carcinomas arise from Waldeyer's ring, of which only 1.8% - 8% originate are from the nasopharynx. Some cystic cervical metastases were initially presumed to be branchial cleft cyst. This case report aims to highlight the unusual presentation of cystic cervical metastasis secondary to nasopharyngeal carcinoma in a young adult. The histopathology, radiological features and management strategy were discussed...
March 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28390805/from-transmandibular-to-transoral-robotic-approach-for-parapharyngeal-space-tumors
#16
Francesco Chu, Marta Tagliabue, Gioacchino Giugliano, Luca Calabrese, Lorenzo Preda, Mohssen Ansarin
PURPOSE: Parapharyngeal space (PPS) tumors are rare, accounting for 0.5% of all head-and-neck masses. Surgery remains the standard treatment for most cases, including different approaches (cervical approach, parotidectomy, mandibulotomy, transoral/robotic). We report our experience in the management of PPS tumors, aiming to create a surgical algorithm on the base of tumor's radiological and clinical characteristics. MATERIALS AND METHODS: Critical retrospective analysis of patients with PPS neoplasms who underwent surgery at our Institute...
March 31, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28364010/initial-performance-of-ni-rads-to-predict-residual-or-recurrent-head-and-neck-squamous-cell-carcinoma
#17
D A Krieger, P A Hudgins, G K Nayak, K L Baugnon, A S Corey, M R Patel, J J Beitler, N F Saba, Y Liu, A H Aiken
BACKGROUND AND PURPOSE: The Head and Neck Imaging Reporting and Data System (NI-RADS) surveillance template for head and neck cancer includes a numeric assessment of suspicion for recurrence (1-4) for the primary site and neck. Category 1 indicates no evidence of recurrence; category 2, low suspicion of recurrence; category 3, high suspicion of recurrence; and category 4, known recurrence. Our purpose was to evaluate the performance of the NI-RADS scoring system to predict local and regional disease recurrence or persistence...
March 31, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28360448/tumefactive-fibroinflammatory-lesion-a-diagnostic-dilemma
#18
Promil Jain, Rajeev Sen, Nisha Sharma, Shilpi Bhargava, Virender Singh
Tumefactive fibroinflammatory lesions (TFLs) are rare idiopathic benign fibrosclerosing lesions that clinically simulate a malignancy. TFLs are seen more frequently in males between 10 and 74 years of age. The usual site of involvement is the head and neck region, but rarely the extremities may be involved. Coexisting fibrosclerotic processes have been reported including retroperitoneal fibrosis, sclerosing cholangitis, sclerosing mediastinal fibrosis, and orbital pseudotumors. The etiology of this poorly understood entity remains unknown...
March 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28336192/radiological-morphology-variances-of-transient-osteoporosis-of-the-hip
#19
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
#20
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...
May 2017: Journal of Cranio-maxillo-facial Surgery
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