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Neuroradiology

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https://www.readbyqxmd.com/read/28078671/melanoma-in-congenital-melanocytic-naevi
#1
REVIEW
V A Kinsler, P O'Hare, N Bulstrode, J E Calonje, W K Chong, D Hargrave, T Jacques, D Lomas, N J Sebire, O Slater
Congenital melanocytic naevi (CMN) are a known risk factor for melanoma, with the greatest risk currently thought to be in childhood. There has been controversy over the years about the incidence, and therefore over clinical management of CMN, due partly to the difficulties of histological diagnosis and partly to publishing bias towards cases of malignancy. Large cohort studies have demonstrated that risk in childhood is related to the severity of the congenital phenotype, not only cutaneous but neuroradiological...
January 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28078310/polg2-deficiency-causes-adult-onset-syndromic-sensory-neuropathy-ataxia-and-parkinsonism
#2
Lionel Van Maldergem, Arnaud Besse, Boel De Paepe, Emma L Blakely, Vivek Appadurai, Margaret M Humble, Juliette Piard, Kate Craig, Langping He, Pierre Hella, François-Guillaume Debray, Jean-Jacques Martin, Marion Gaussen, Patrice Laloux, Giovanni Stevanin, Rudy Van Coster, Robert W Taylor, William C Copeland, Eric Mormont, Penelope E Bonnen
OBJECTIVE: Mitochondrial dysfunction plays a key role in the pathophysiology of neurodegenerative disorders such as ataxia and Parkinson's disease. We describe an extended Belgian pedigree where seven individuals presented with adult-onset cerebellar ataxia, axonal peripheral ataxic neuropathy, and tremor, in variable combination with parkinsonism, seizures, cognitive decline, and ophthalmoplegia. We sought to identify the underlying molecular etiology and characterize the mitochondrial pathophysiology of this neurological syndrome...
January 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28074769/-neuroradiological-changes-by-suppression-of-tics
#3
Sara Bohn Larsen, Camilla Birgitte Sørensen, Liselotte Skov, Nanette Mol Debes
Tourette's syndrome is characterized by involuntary tics. First choice of treatment has been pharmacological, but recently, behavioural therapy teaching patients to suppress their tics has been introduced. Neuroimaging studies have shown an increased activity in the prefrontal cortex, temporal lobes and caudate nucleus, and a decreased activity in globus pallidus and putamen during inhibition of tics. The activity in the frontal lobes changes with age, probably caused by a lack of compensatory hypertrophy. In order to fully understand the mechanism behind behavioural therapy further studies are needed...
January 2, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28070794/emerging-neuroradiological-topics-in-journals-from-related-societies
#4
EDITORIAL
Yukunori Korogi, Shinji Naganawa
No abstract text is available yet for this article.
January 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28059706/the-prevalence-of-malformations-of-cortical-development-in-a-pediatric-hereditary-hemorrhagic-telangiectasia-population
#5
G J Palagallo, S R McWilliams, L A Sekarski, A Sharma, M S Goyal, A J White
BACKGROUND AND PURPOSE: Brain AVM, cerebral abscess, and ischemic stroke are among the well known neurologic manifestations of hereditary hemorrhagic telangiectasia. However, recently reported data suggest an additional association with malformations of cortical development. The purpose of this study was to determine the prevalence of malformations of cortical development in a population of pediatric patients with hereditary hemorrhagic telangiectasia. MATERIALS AND METHODS: A retrospective review of brain MRIs from 116 pediatric patients was performed...
November 10, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28058711/hyperglycemia-is-associated-with-poor-survival-in-primary-central-nervous-system-lymphoma-patients
#6
Ayumi Debata, Koichi Yoshida, Kenta Ujifuku, Haruna Yasui, Kensaku Kamada, Daisuke Niino, Takayuki Matsuo
PURPOSE: Primary central nervous system lymphoma (PCNSL) is a type of non-Hodgkin lymphoma (NHL), and it has been postulated that metabolic disorder may contribute to NHL etiology. We retrospectively investigated the prognostic significance of hyperglycemia in patients with PCNSL. We evaluated glucose transporter type 1 (GLUT1) expression by immunohistochemistry and analyzed its association with hyperglycemia and survival. METHODS: The medical and neuroradiologic records of 50 patients with PCNSL at our institution over the past 15 years were analyzed...
December 29, 2016: Tumori
https://www.readbyqxmd.com/read/28051077/fig4-variants-in-central-european-patients-with-amyotrophic-lateral-sclerosis-a-whole-exome-and-targeted-sequencing-study
#7
Alma Osmanovic, Isolde Rangnau, Anne Kosfeld, Susanne Abdulla, Claas Janssen, Bernd Auber, Peter Raab, Matthias Preller, Susanne Petri, Ruthild G Weber
We aimed to identify the genetic cause of the devastating neurodegenerative disease amyotrophic lateral sclerosis (ALS) in a German family with two affected individuals, and to assess the prevalence of variants in the identified risk gene, FIG4, in a central European ALS cohort. Whole-exome sequencing (WES) and an overlapping data analysis strategy were performed in an ALS family with autosomal dominant inheritance and incomplete penetrance. Additionally, 200 central European ALS patients were analyzed using whole-exome or targeted sequencing...
January 4, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28049559/workflow-dynamics-and-the-imaging-value-chain-quantifying-the-effect-of-designating-a-nonimage-interpretive-task-workflow
#8
Matthew H Lee, Andrew J Schemmel, B Dustin Pooler, Taylor Hanley, Tabassum A Kennedy, Aaron S Field, Douglas Wiegmann, John-Paul J Yu
PURPOSE: To assess the impact of separate non-image interpretive task and image-interpretive task workflows in an academic neuroradiology practice. MATERIALS AND METHODS: A prospective, randomized, observational investigation of a centralized academic neuroradiology reading room was performed. The primary reading room fellow was observed over a one-month period using a time-and-motion methodology, recording frequency and duration of tasks performed. Tasks were categorized into separate image interpretive and non-image interpretive workflows...
November 15, 2016: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28047706/su-d-209-03-radiation-dose-reduction-using-real-time-image-processing-in-interventional-radiology
#9
K Kanal, J Moirano, D Zamora, B Stewart
PURPOSE: To characterize changes in radiation dose after introducing a new real-time image processing technology in interventional radiology systems. METHODS: Interventional radiology (IR) procedures are increasingly complex, at times requiring substantial time and radiation dose. The risk of inducing tissue reactions as well as long-term stochastic effects such as radiation-induced cancer is not trivial. To reduce this risk, IR systems are increasingly equipped with dose reduction technologies...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041776/factors-determining-scientific-paper-productivity-by-neuroradiology-fellows
#10
Ivana Zupetic, Ilyssa J Yousem, Li Liu, Nafi Aygun, David M Yousem
RATIONALE AND OBJECTIVES: We sought to determine (1) whether United States Medical Licensing Examination (USMLE) scores predict academic productivity in neuroradiology fellows as measured by publications and citations, and (2) what factors predict such productivity. MATERIALS AND METHODS: We reviewed the USMLE scores, gender, medical school location attended, publication record before and during fellowship, fellowship evaluation ratings and subsequent practice site (private vs academic) of neuroradiology fellows from 2004 to 2014 to determine relationships with publications and citations after fellowship...
December 29, 2016: Academic Radiology
https://www.readbyqxmd.com/read/28040791/severe-cervical-spondylotic-myelopathy-with-complete-neurological-and-neuroradiological-recovery-within-a-month-after-surgery
#11
(no author information available yet)
No abstract text is available yet for this article.
December 31, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28028791/clinical-value-of-neutrophil-to-lymphocyte-and-platelet-to-lymphocyte-ratio-after-aneurysmal-subarachnoid-hemorrhage
#12
Chuanyuan Tao, Jiajing Wang, Xin Hu, Junpeng Ma, Hao Li, Chao You
BACKGROUND: Inflammation and thrombosis are associated with the pathogenesis of aneurysmal subarachnoid hemorrhage (aSAH) and neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) are emerging as novel inflammatory markers in stroke. We aimed to identify the association of NLR and PLR with delayed cerebral ischemia (DCI) and 3-month outcome after aSAH. METHODS: Two hundred and forty-seven patients diagnosed with aSAH within 24 h of symptoms onset were enrolled...
December 27, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/28018470/megalencephaly-capillary-malformation-polymicrogyria-syndrome-the-first-case-report-in-korea
#13
Yeon-Chul Choi, Mi-Sun Yum, Min-Jee Kim, Yun-Jung Lee, Tae-Sung Ko
Megalencephaly-capillary malformation-polymicrogyria syndrome (MCAP), previously known as macrocephaly-cutis marmorata telangiectatica congenita and macrocephaly-capillary malformation syndrome, is a rare multiple-malformation syndrome that is characterized by progressive megalencephaly, capillary malformations of the midline face and body, or distal limb anomalies such as syndactyly. Herein, we report a female infant case that satisfies the recently proposed criteria of MCAP and describe the distinctive neuroradiological and morphological features...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28018468/posterior-reversible-encephalopathy-syndrome-caused-by-presumed-takayasu-arteritis
#14
Ki Wuk Lee, Sang Taek Lee, Heeyeon Cho
Takayasu arteritis (TA) is a chronic inflammatory disease of unknown etiology that affects mainly the aorta, main aortic branches, and pulmonary arteries. Diverse neurological manifestations of TA have rarely been reported in children. Posterior reversible encephalopathy syndrome (PRES) is a neuroradiological condition that presents with headache, seizure, visual disturbances, and characteristic lesions on imaging. Inflammatory condition and severe hypertension in TA can cause PRES. We report of a 5-year-old girl with presumed TA who presented with PRES and chronic total occlusion in the renal artery...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28011390/reversible-mri-findings-in-a-case-of-acute-intermittent-porphyria-with-a-novel-mutation-in-the-porphobilinogen-deaminase-gene
#15
Jing Yang, Hang Yang, Qianlong Chen, Baolai Hua, Tienan Zhu, Yongqiang Zhao, Xuezhong Yu, Huadong Zhu, Zhou Zhou
Acute intermittent porphyria (AIP) is an autosomal dominant disorder caused by a partial deficiency of porphobilinogen deaminase (PBGD), the third enzyme in the of heme biosynthetic pathway. It can affect the autonomic, peripheral, and central nervous system. Posterior reversible encephalopathy syndrome is a clinicoradiological entity characterized by headache, seizures, altered consciousness, and visual disorder associated with potentially reversible neuroradiological abnormalities predominantly in the parieto-occipital lobes...
December 18, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28011356/endoscopic-removal-of-suprasellar-colloid-cyst-with-interpedincular-and-prepontine-cisterns-extension
#16
Caglar Temiz, Murat Kutlay, Mukerrem Safali, Cahit Kural, Can Ezgu, Yusuf Izci
BACKGROUND: Colloid cysts (CC) are rarely found in the sellar-suprasellar region. Differential diagnosis of CC is more challenging in this region because many other cystic lesions may locate or invade sellar or suprasellar structures. We present a large and unusual case of sellar-suprasellar colloid cyst with extension into the suprasellar, interpedincular and prepontine cisterns. This is the first case of sellar-suprasellar colloid cyst treated with endoscopic transsphenoidal approach...
December 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28007986/phospholipase-a2-activating-protein-is-associated-with-a-novel-form-of-leukoencephalopathy
#17
Tzipora C Falik Zaccai, David Savitzki, Yifat Zivony-Elboum, Thierry Vilboux, Eric C Fitts, Yishay Shoval, Limor Kalfon, Nadra Samra, Zohar Keren, Bella Gross, Natalia Chasnyk, Rachel Straussberg, James C Mullikin, Jamie K Teer, Dan Geiger, Daniel Kornitzer, Ora Bitterman-Deutsch, Abraham O Samson, Maki Wakamiya, Johnny W Peterson, Michelle L Kirtley, Iryna V Pinchuk, Wallace B Baze, William A Gahl, Robert Kleta, Yair Anikster, Ashok K Chopra
Leukoencephalopathies are a group of white matter disorders related to abnormal formation, maintenance, and turnover of myelin in the central nervous system. These disorders of the brain are categorized according to neuroradiological and pathophysiological criteria. Herein, we have identified a unique form of leukoencephalopathy in seven patients presenting at ages 2 to 4 months with progressive microcephaly, spastic quadriparesis, and global developmental delay. Clinical, metabolic, and imaging characterization of seven patients followed by homozygosity mapping and linkage analysis were performed...
December 21, 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28007313/neuropsychological-alterations-and-neuroradiological-findings-in-patients-with-post-traumatic-concussion-results-of-a-pilot-study
#18
A Rădoi, M A Poca, V Cañas, J M Cevallos, L Membrado, M C Saavedra, M Vidal, F Martínez-Ricarte, J Sahuquillo
INTRODUCTION: Mild traumatic brain injury (mTBI) has traditionally been considered to cause no significant brain damage since symptoms spontaneously remit after a few days. However, this idea is facing increasing scrutiny. The purpose of this study is to demonstrate the presence of early cognitive alterations in a series of patients with mTBI and to link these findings to different markers of brain damage. METHODS: We conducted a prospective study of a consecutive series of patients with mTBI who were evaluated over a 12-month period...
December 19, 2016: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/27994696/primary-hydatid-cyst-of-the-brain-in-a-child-a-case-report
#19
Alessia Imperato, Alessandro Consales, Marcello Ravegnani, Elio Castagnola, Roberto Bandettini, Andrea Rossi
BACKGROUND: Primary intracranial hydatid cyst is a rare location of human echinococcosis whose spontaneous, traumatic or even iatrogenic rupture, as in case of misdiagnosis, may cause anaphylactic reactions and dissemination. CASE REPORT: We discuss the management of a 9-year-old boy who was admitted to our Emergency Department with an intracranial hypertension syndrome. Head CT scan and brain MRI showed a huge intra-axial right temporo-parieto-occipital cyst with a marginal calcification, associated with left ventricular uncompensated hydrocephalus...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27957613/european-society-of-neuroradiology-esnr
#20
(no author information available yet)
No abstract text is available yet for this article.
December 2016: Neuroradiology
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