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Brain tumors in children

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https://www.readbyqxmd.com/read/28748542/pediatric-intracerebral-histiocytic-sarcoma-with-rhabdoid-features-case-report-and-literature-review
#1
Young Hye Kim, Gie-Taek Yie, Na Rae Kim, In-Sang Jeon, Hyun Yee Cho, Jae Yeon Seok, Eung Yeop Kim, Kyu Chan Lee
A 16-year-old boy presented with marked weight loss, weakness of the left extremities and dizziness of 2 months duration and vomiting for 2 days. Brain MRI showed an approximately 6.5 × 5.3 cm-sized huge heterogeneous enhancing mass located in the corpus callosum, extending into the lateral ventricle. Open biopsy showed that the lesion consisted of lymphoplasmacytes and plump histiocytes with rhabdoid morphology, which were stained with S-100 protein, CD68 (KP1) and negative for CD1a. Histiocytic tumor was initially diagnosed...
July 27, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28746941/occurrence-of-cranial-neoplasms-in-pediatric-patients-with-noonan-syndrome-receiving-growth-hormone-is-screening-with-brain-mri-prior-to-initiation-of-growth-hormone-indicated
#2
Kanthi Bangalore Krishna, Pedro Pagan, Oscar Escobar, Jadranka Popovic
Noonan syndrome (NS) is associated with short stature. Growth hormone treatment has been FDA approved for use in these patients. Children with NS are at a higher risk of developing benign and malignant proliferative disorders, primary brain tumors being one of them. Since growth hormone therapy can worsen the tumor burden, screening with a brain MRI prior to growth hormone initiation in NS patients is strongly recommended. Here we present two NS patients who developed different primary brain tumors while being on growth hormone therapy...
July 26, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28743724/changes-in-white-matter-microstructure-impact-cognition-by-disrupting-the-ability-of-neural-assemblies-to-synchronize
#3
Sonya Bells, Jérémie Lefebvre, Steven A Prescott, Colleen Dockstader, Eric Bouffet, Jovanka Skocic, Suzanne Laughlin, Donald J Mabbott
Cognition is compromised by white matter injury but the neurophysiological alterations linking them remain unclear. We hypothesized that reduced neural synchronization caused by disruption of neural signal propagation is involved. To test this, we evaluated group differences in: diffusion tensor white matter (WM) microstructure measures within the optic radiations, primary visual area (V1) and cuneus; neural phase synchrony to a visual attention cue during visual-motor task, and; reaction time (RT) to a response cue during the same task between 26 pediatric patients (17/9: male/female) treated with cranial radiation treatment for a brain tumor [12...
July 25, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28733870/rethinking-childhood-ependymoma-a-retrospective-multi-center-analysis-reveals-poor-long-term-overall-survival
#4
Amanda E Marinoff, Clement Ma, Dongjing Guo, Matija Snuderl, Karen D Wright, Peter E Manley, Hasan Al-Sayegh, Claire E Sinai, Nicole J Ullrich, Karen Marcus, Daphne Haas-Kogan, Liliana Goumnerova, Wendy B London, Mark W Kieran, Susan N Chi, Jason Fangusaro, Pratiti Bandopadhayay
Ependymoma is the third most common brain tumor in children, but there is a paucity of large studies with more than 10 years of follow-up examining the long-term survival and recurrence patterns of this disease. We conducted a retrospective chart review of 103 pediatric patients with WHO Grades II/III intracranial ependymoma, who were treated at Dana-Farber/Boston Children's Cancer and Blood Disorders Center and Chicago's Ann & Robert H. Lurie Children's Hospital between 1985 and 2008, and an additional 360 ependymoma patients identified from the Surveillance Epidemiology and End Results (SEER) database...
July 21, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28730883/affected-aspects-regarding-literacy-and-numeracy-in-children-treated-for-brain-tumors
#5
Malin Lönnerblad, Riikka Lovio, Eva Berglund, Ingrid Van't Hooft
The aim of this study was to investigate the test results of reading speed, reading comprehension, word comprehension, spelling, basic arithmetic skills, and number sense (intuitive understanding of numbers) by children treated for brain tumors. This is a retrospective study based on medical records, including standardized academic tests. In the years of 2010 to 2014, all children in the area of Stockholm between 7 and 18 years (IQ <70) who had no major linguistic or motor difficulties after they had undergone treatment for brain tumors were offered a special education assessment one year after treatment, at school start, or the year before a transition from one stage to another...
July 1, 2017: Journal of Pediatric Oncology Nursing: Official Journal of the Association of Pediatric Oncology Nurses
https://www.readbyqxmd.com/read/28717727/childhood-cancer-mortality-in-india-direct-estimates-from-a-nationally-representative-survey-of-childhood-deaths
#6
Sumit Gupta, Shaun K Morris, Wilson Suraweera, Lukasz Aleksandrowicz, Rajesh Dikshit, Prabhat Jha
PURPOSE: Although most children with cancer live in low- and middle-income countries, measurements of childhood cancer burden in such countries have been restricted to incidence rates from a few subnational cancer registries and mortality rates from vital statistics. We aimed to provide alternative burden estimates by using nationally representative longitudinal survey-derived mortality rates. METHODS: We examined cancer deaths in childhood (1 month to 14 years of age) in the Million Death Study, a cohort of > 27,000 pediatric deaths in India on the basis of enhanced verbal autopsies...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28714494/computerized-axial-tomography-findings-in-children-with-afebrile-seizures-a-hospital-based-study-at-eastern-nepal
#7
P Poudel, M K Gupta, S P Kafle
BACKGROUND: Computerized Tomography can be performed in resource limited areas where Magnetic Resonance Imaging is less practical. This study was conducted to find out the proportion of cases with abnormal CT scan and findings of CT scan in children with afebrile seizures in a resource limited area. METHODS: This prospective study was conducted from 1st July 2009 to 31st March 2014 in a university hospital of Nepal. Patients (1 month to 20 years of age) presenting with history of afebrile seizure were included...
January 2017: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/28695311/aberrant-paramagnetic-signals-outside-the-tumor-volume-on-routine-surveillance-mri-of-brain-tumor-patients
#8
Shlomit Yust-Katz, Edna Inbar, Natalia Michaeli, Dror Limon, Tali Siegal
Late complications of cerebral radiation therapy (RT) involve vascular injury with acquired cavernous malformation, telangiectasias and damage to vascular walls which are well recognized in children. Its incidence in adults is unknown. Blood products and iron deposition that accompany vascular injury create paramagnetic effects on MRI. This study retrospectively investigated the frequency of paramagnetic lesions on routine surveillance MRI of adult brain tumor patients. MRI studies of 115 brain tumor patients were reviewed...
July 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28693404/the-association-between-the-behavior-rating-inventory-of-executive-functioning-and-cognitive-testing-in-children-diagnosed-with-a-brain-tumor
#9
M de Vries, M A de Ruiter, K J Oostrom, A Y N Schouten-Van Meeteren, H Maurice-Stam, J Oosterlaan, M A Grootenhuis
Pediatric brain tumor survivors (PBTS) suffer from cognitive late effects, such as deteriorating executive functioning (EF). We explored the suitability of the Behavior Rating Inventory of Executive Function (BRIEF) to screen for these late effects. We assessed the relationship between the BRIEF and EF tasks, and between the BRIEF-Parent and BRIEF-Teacher, and we explored the clinical utility. Eighty-two PBTS (8-18 years) were assessed with EF tasks measuring attention, cognitive flexibility, inhibition, visual-, and working memory (WM), and with the BRIEF-Parent and BRIEF-Teacher...
July 10, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28675683/pediatric-cancer-pathology-review-from-a-single-institution-neuropathology-expert-opinion-is-essential-for-accurate-diagnosis-of-pediatric-brain-tumors
#10
Zeina Merabi, Fouad Boulos, Teresa Santiago, Jesse Jenkins, Miguel Abboud, Samar Muwakkit, Nidale Tarek, Ghazi Zaatari, Sima Jeha, Hassan El-Solh, Raya Saab
BACKGROUND AND OBJECTIVES: Second pathology review has been reported to improve accuracy in oncologic diagnoses, including pediatric malignancies. We assessed the impact of second review on the diagnosis of pediatric malignancies at a tertiary care referral center in Beirut, Lebanon. METHODS: Pathology reports of patients treated at the Children's Cancer Institute in Lebanon were retrospectively reviewed for the period 2008-2016 and compared with same samples' diagnoses at St...
July 4, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28670168/value-of-repeat-brain-mri-in-children-with-focal-epilepsy-and-negative-findings-on-initial-mri
#11
Tae Yeon Jeon, Ji Hye Kim, Jeehun Lee, So-Young Yoo, Sook Min Hwang, Munhyang Lee
OBJECTIVE: To evaluate the value of repeat brain magnetic resonance imaging (MRI) in identifying potential epileptogenic lesions in children with initial MRI-negative focal epilepsy. MATERIALS AND METHODS: Our Institutional Review Board approved this retrospective study and waived the requirement for informed consent. During a 15-year period, 257 children (148 boys and 109 girls) with initial MRI-negative focal epilepsy were included. After re-evaluating both initial and repeat MRIs, positive results at repeat MRI were classified into potential epileptogenic lesions (malformation of cortical development and hippocampal sclerosis) and other abnormalities...
July 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28670142/prevalence-of-hypercalcemia-of-malignancy-among-pediatric-cancer-patients-in-the-uk-clinical-practice-research-datalink-database
#12
Susan Jick, Lin Li, Victor M Gastanaga, Alexander Liede, Rohini K Hernandez
BACKGROUND: The reported proportion of cancer patients who experience hypercalcemia of malignancy (HCM) is low, particularly in the pediatric population, ranging between <1% and 5%. HCM can be observed with any type of tumor in children and occurs most commonly with leukemia. While HCM is a potentially fatal condition, the prevalence of HCM is not well understood in pediatric cancer patients. METHODS: Using the UK Clinical Practice Research Datalink, we identified pediatric cancer patients with recorded corrected serum calcium (CSC) from 2003 through 2014...
2017: Clinical Epidemiology
https://www.readbyqxmd.com/read/28669013/narrative-medicine-perspectives-on-patient-identity-and-integrative-care-in-neuro-oncology
#13
Robert B Slocum, Tracy A Howard, John L Villano
Narrative Medicine sessions can encourage patients to rediscover personal identity and meaning by telling or writing their stories. We explored this process to improve care and quality of life for brain cancer patients in an academic neuro-oncology program. Brain cancer and its treatments may threaten a patient's quality of life and sense of self in many ways, including impaired cognitive skills, loss of memory, reduced coordination, and limited capacity for self-expression. The impact of symptoms and side effects on quality of life must be evaluated in terms of each patient's identity and may be understood in terms of each patient's story...
July 1, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28667671/smaller-hippocampal-subfield-volumes-predict-verbal-associative-memory-in-pediatric-brain-tumor-survivors
#14
Alexandra L Decker, Kamila U Szulc, Eric Bouffet, Suzanne Laughlin, M Mallar Chakravarty, Jovanka Skocic, Cynthia B de Medeiros, Donald J Mabbott
The developing hippocampus is highly sensitive to chemotherapy and cranial radiation treatments for pediatric cancers, yet little is known about the effects that cancer treatments have on specific hippocampal subfields. Here, we examined hippocampal subfield volumes in twenty-nine pediatric brain tumor survivors treated with cranial radiation and chemotherapy, and thirty healthy developing children and adolescents. We also examined associations between hippocampal subfield volumes and short-term verbal memory...
July 1, 2017: Hippocampus
https://www.readbyqxmd.com/read/28662162/bkm120-induces-apoptosis-and-inhibits-tumor-growth-in-medulloblastoma
#15
Ping Zhao, Jacob Hall, Mary Durston, Austin Voydanoff, Elizabeth VanSickle, Shannon Kelly, Abhinav B Nagulapally, Jeffery Bond, Giselle Saulnier Sholler
Medulloblastoma (MB) is the most common malignant brain tumor in children, accounting for nearly 20 percent of all childhood brain tumors. New treatment strategies are needed to improve patient survival outcomes and to reduce adverse effects of current therapy. The phosphatidylinositol-3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) intracellular signaling pathway plays a key role in cellular metabolism, proliferation, survival and angiogenesis, and is often constitutively activated in human cancers, providing unique opportunities for anticancer therapeutic intervention...
2017: PloS One
https://www.readbyqxmd.com/read/28649600/oncolytic-herpes-virus-rrp450-shows-efficacy-in-orthotopic-xenograft-group-3-4-medulloblastomas-and-atypical-teratoid-rhabdoid-tumors
#16
Adam W Studebaker, Brian J Hutzen, Christopher R Pierson, Kellie B Haworth, Timothy P Cripe, Eric M Jackson, Jeffrey R Leonard
Pediatric brain tumors including medulloblastoma and atypical teratoid/rhabdoid tumor are associated with significant mortality and treatment-associated morbidity. While medulloblastoma tumors within molecular subgroups 3 and 4 have a propensity to metastasize, atypical teratoid/rhabdoid tumors frequently afflict a very young patient population. Adjuvant treatment options for children suffering with these tumors are not only sub-optimal but also associated with many neurocognitive obstacles. A potentially novel treatment approach is oncolytic virotherapy, a developing therapeutic platform currently in early-phase clinical trials for pediatric brain tumors and recently US Food and Drug Administration (FDA)-approved to treat melanoma in adults...
September 15, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28646252/childhood-brain-tumors-a-systematic-review-of-the-structural-neuroimaging-literature
#17
REVIEW
Alyssa S Ailion, Kyle Hortman, Tricia Z King
Due to medical advances, a large portion of children survive brain tumor diagnosis and treatment. Therefore, it is important to identify the neuroanatomical and neurocognitive outcomes associated with survivorship. This review summarizes the specific regional structural neuroimaging findings, the broad structural findings, as well as the corresponding neurocognitive domains affected in brain tumor populations. Across studies, damage is commonly reported near the cerebellum, brain stem, and subcortical regions, as well as the frontal lobes...
June 23, 2017: Neuropsychology Review
https://www.readbyqxmd.com/read/28640705/genomic-analysis-of-childhood-brain-tumors-methods-for-genome-wide-discovery-and-precision-medicine-become-mainstream
#18
Stephen C Mack, Paul A Northcott
Recent breakthroughs in next-generation sequencing technology and complementary genomic platforms have transformed our capacity to interrogate the molecular landscapes of human cancers, including childhood brain tumors. Numerous high-throughput genomic studies have been reported for the major histologic brain tumor entities diagnosed in children, including interrogations at the level of the genome, epigenome, and transcriptome, many of which have yielded essential new insights into disease biology. The nature of these discoveries has been largely platform dependent, exemplifying the usefulness of applying different genomic and computational strategies, or integrative approaches, to address specific biologic and/or clinical questions...
July 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28640697/current-clinical-challenges-in-childhood-ependymoma-a-focused-review
#19
Thomas E Merchant
Ependymoma is a locally aggressive tumor with metastatic potential that arises in diverse locations throughout the brain and spine in children. Tumor and treatment may result in significant morbidity. Cure remains elusive for many patients owing to diverse biology and resistance to conventional therapy. The implementation of systematic postoperative irradiation in clinical trials during the past 20 years has increased the proportion of patients achieving durable disease control with excellent results, as measured by objective functional outcome measures...
July 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28640695/gadolinium-brain-deposition-after-macrocyclic-gadolinium-administration-a-pediatric-case-control-study
#20
Daniel Tibussek, Christin Rademacher, Julian Caspers, Bernd Turowski, Jörg Schaper, Gerald Antoch, Dirk Klee
Purpose To determine whether signal intensity (SI) in T1 sequences as a potential indicator of gadolinium deposition increases after repeated administration of the macrocyclic gadolinium-based contrast agents (GBCAs) gadoteridol and gadoterate meglumine in a pediatric cohort. Materials and Methods This retrospective case-control study of children with brain tumors who underwent nine or more contrast material-enhanced brain magnetic resonance (MR) imaging studies from 2008 to 2015 was approved by the local ethics board...
June 21, 2017: Radiology
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