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medulloblastoma children

Emmanuel Jouglar, Antoine Wagner, Grégory Delpon, Loïc Campion, Philippe Meingan, Valérie Bernier, Charlotte Demoor-Goldschmidt, Marc-André Mahé, Thomas Lacornerie, Stéphane Supiot
OBJECTIVES: Late abdominal irradiation toxicity during childhood included renal damage, hepatic toxicity and secondary diabetes mellitus. We compared the potential of conformal radiotherapy (CRT), helical tomotherapy (HT) and proton beam therapy (PBT) to spare the abdominal organs at risk (pancreas, kidneys and liver- OAR) in children undergoing abdominal irradiation. METHODS: We selected children with abdominal tumors who received more than 10 Gy to the abdomen...
2016: PloS One
P Papanagiotou, M Politi
Various types of brain tumor can occur in the region of the posterior fossa. Brain metastases in adults are the most common malignancies at this localization. Ependymomas, medulloblastomas and pilocytic astrocytomas occur mostly in children and only rarely in adults. Other tumors that occur in the posterior fossa are meningiomas, schwannomas, hemangioblastomas, brain stem gliomas and epidermoid tumors. Due to the fact that the various tumors of the posterior fossa have different treatment approaches and prognoses, an accurate and specific diagnosis is mandatory...
October 18, 2016: Der Radiologe
Ahitagni Biswas, Lakhan Kashyap, Aanchal Kakkar, Chitra Sarkar, Pramod Kumar Julka
Atypical teratoid/rhabdoid tumor (AT/RT) is a highly malignant embryonal central nervous system tumor commonly affecting children <3 years of age. It roughly constitutes 1%-2% of all pediatric central nervous system tumors. Recent data show that it is the most common malignant central nervous system tumor in children <6 months of age. Management of this aggressive tumor is associated with a myriad of diagnostic and therapeutic challenges. On the basis of radiology and histopathology alone, distinction of AT/RT from medulloblastoma or primitive neuroectodermal tumor is difficult, and hence this tumor has been commonly misdiagnosed as primitive neuroectodermal tumor for decades...
2016: Cancer Management and Research
B H Kann, H S M Park, N H Lester-Coll, D N Yeboa, V Benitez, R S Bindra, A J Khan, A M Marks, K B Roberts
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Irina Alimova, June Ng, Peter Harris, Diane Birks, Andrew Donson, Michael D Taylor, Nicholas K Foreman, Sujatha Venkataraman, Rajeev Vibhakar
Medulloblastoma is the most common type of malignant brain tumor that affects children. Although recent advances in chemotherapy and radiation have improved outcomes, high-risk patients perform poorly with significant morbidity. Gene expression profiling has revealed that monopolar spindle 1 (MPS1) (TTK1) is highly expressed in medulloblastoma patient samples compared to that noted in normal cerebellum. MPS1 is a key regulator of the spindle assembly checkpoint (SAC), a mitotic mechanism specifically required for proper chromosomal alignment and segregation...
September 12, 2016: Oncology Reports
Emilyn Banfield, Austin L Brown, Erin C Peckham, Surya P Rednam, Jeffrey Murray, M Fatih Okcu, Laura E Mitchell, Murali M Chintagumpala, Ching C Lau, Michael E Scheurer, Philip J Lupo
AIM: Medulloblastoma is the most frequent malignant pediatric brain tumor. While survival rates have improved due to multimodal treatment including cisplatin-based chemotherapy, there are few prognostic factors for adverse treatment outcomes. Notably, genes involved in the nucleotide excision repair pathway, including ERCC2, have been implicated in cisplatin sensitivity in other cancers. Therefore, this study evaluated the role of ERCC2 DNA methylation profiles on pediatric medulloblastoma survival...
October 2016: Cancer Epidemiology
Bo Liang, Enshan Feng, Qinghe Wang, Yang Cao, Peiliang Li, Yanbin Li, Jidian Sun, Fang Wang
Medulloblastoma is the most common central nervous system malignancy in children; however, it is significantly less common among adults, particularly elderly individuals. We herein report an unusual case of a 72-year-old woman who presented with progressive dizziness. Magnetic resonance imaging revealed a heterogeneous solid mass located near the right tentorium of the cerebellum. The patient underwent surgical removal of the tumor and microscopic examination revealed histological and immunohistochemical characteristics consistent with a diagnosis of medulloblastoma...
September 2016: Molecular and Clinical Oncology
Gabriel Olabiyi Ogun, Amos Olufemi Adeleye, Taiwo Olabimpe Babatunde, Olufunmilola Abimbola Ogun, Ayodeji Salami, Biobele Jotham Brown, Effiong Akang
INTRODUCTION: Contrary to some earlier teachings that central nervous system (CNS) tumours are uncommon in black children, these neoplasms are the fourth most common paediatric tumours in Ibadan. Our centre is the major referral centre for CNS tumours in Nigeria. The last major study of paediatric CNS neoplasms from Ibadan was in 1985. An update of the data on paediatric CNS neoplasms at our centre is presented. METHODS: A retrospective review of all histologically diagnosed CNS tumours in children (0-14 years) from January 2001 to December 2010 from the database of the Department of Pathology, University College Hospital, Ibadan, Nigeria was done...
2016: Pan African Medical Journal
Tao Jiang, Junmei Wang, Ying Wang, Chunde Li
BACKGROUND: Very young children with Gorlin syndrome are at risk for developing medulloblastoma. Patients with Gorlin syndrome may have multiple system abnormalities, including basal cell carcinomas, jaw cysts, desmoplastic medulloblastoma, palmar/plantar pits, rib abnormalities, and intracranial falx calcification. The early diagnosis of Gorlin syndrome in desmoplastic medulloblastoma patients is very important because these patients should receive chemotherapy as a first-line treatment and should avoid radiotherapy as much as possible...
2016: World Journal of Surgical Oncology
Iska Moxon-Emre, Michael D Taylor, Eric Bouffet, Kristina Hardy, Cynthia J Campen, David Malkin, Cynthia Hawkins, Normand Laperriere, Vijay Ramaswamy, Ute Bartels, Nadia Scantlebury, Laura Janzen, Nicole Law, Karin S Walsh, Donald J Mabbott
PURPOSE: To evaluate intellectual functioning and the implications of limiting radiation exposure in the four biologically distinct subgroups of medulloblastoma: wingless (WNT), sonic hedgehog (SHH), Group 3, and Group 4. PATIENTS AND METHODS: A total of 121 patients with medulloblastoma (n = 51, Group 4; n = 25, Group 3; n = 28, SHH; and n = 17, WNT), who were treated between 1991 and 2013 at the Hospital for Sick Children (Toronto, Ontario, Canada), Children's National Health System (Washington, DC), or the Lucile Packard Children's Hospital (Palo Alto, CA), had intellectual assessments...
August 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
Benjamin H Kann, Henry S Park, Nataniel H Lester-Coll, Debra N Yeboa, Viviana Benitez, Atif J Khan, Ranjit S Bindra, Asher M Marks, Kenneth B Roberts
Importance: Postoperative radiotherapy to the craniospinal axis is standard-of-care for pediatric medulloblastoma but is associated with long-term morbidity, particularly in young children. With the advent of modern adjuvant chemotherapy strategies, postoperative radiotherapy deferral has gained acceptance in children younger than 3 years, although it remains controversial in older children. Objective: To analyze recent postoperative radiotherapy national treatment patterns and implications for overall survival in patients with medulloblastoma ages 3 to 8 years...
August 4, 2016: JAMA Oncology
Emma Sandén, Julio Enríquez Pérez, Edward Visse, Marcel Kool, Helena Carén, Peter Siesjö, Anna Darabi
BACKGROUND: Primary brain tumors are the most common solid tumors in children. Increasing evidence demonstrates diverse intratumoral immune signatures, which are tentatively reflected in peripheral blood. PROCEDURE: Twenty cytokines were analyzed in preoperative plasma samples from five healthy children and 45 children with brain tumors, using a multiplex platform (MesoScale Discovery V-PLEX(®) ). Tumor types included medulloblastoma (MB), ependymoma, sarcoma, high-grade glioma, pilocytic astrocytoma, and other low-grade gliomas...
July 29, 2016: Pediatric Blood & Cancer
Barrie Cohen, Michael Roth, Jonathan M Marron, Stacy W Gray, David S Geller, Bang Hoang, Richard Gorlick, Katherine A Janeway, Jonathan Gill
BACKGROUND: Patients with relapsed and refractory solid tumors have a poor prognosis. Recent advances in genomic technology have made it feasible to screen tumors for actionable mutations, with the anticipation that this may provide benefit to patients. METHODS: Pediatric oncologists were emailed an anonymous 34-question survey assessing their willingness to offer a rebiopsy to patients with relapsed disease for the purpose of tumor genomic profiling. They were presented with two scenarios evaluating morbidity and invasiveness of the procedures using the clinical examples of medulloblastoma and Ewing sarcoma...
July 26, 2016: Annals of Surgical Oncology
Ajay Gupta, Amit Kumar, Andaleeb Abrari, Rana Patir, Sandeep Vaishya
BACKGROUND: Medulloblastoma is the most common malignant brain tumor in children. Infants are in the high-risk category. Complete surgical resection is the single most important determinant of prognosis and survival in nonmetastatic disease. Infants with large primaries after incomplete resection/biopsy and poor general condition have bad prognosis. They are considered poor candidates for intensive chemotherapy involving high dose methotrexate/autologous stem cell transplantation as they are often unable to tolerate these aggressive regimens...
September 2016: World Neurosurgery
Nelci Zanon Collange, Silvana de Azevedo Brito, Ricardo Rezende Campos, Egmond Alves Silva Santos, Ricardo Vieira Botelho
No abstract text is available yet for this article.
July 2016: Revista da Associação Médica Brasileira
Nelci Zanon Collange, Silvana de Azevedo Brito, Ricardo Rezende Campos, Egmond Alves Silva Santos, Ricardo Vieira Botelho
No abstract text is available yet for this article.
July 2016: Revista da Associação Médica Brasileira
Angela Di Giannatale, Andrea Carai, Antonella Cacchione, Antonio Marrazzo, Vito Andrea Dell'Anna, Giovanna Stefania Colafati, Francesca Diomedi-Camassei, Evelina Miele, Agnese Po, Elisabetta Ferretti, Franco Locatelli, Angela Mastronuzzi
BACKGROUND: Medulloblastoma is the most common malignant brain tumor in children. To date only few cases of medulloblastoma with hemorrhages have been reported in the literature. Although some studies speculate on the pathogenesis of this anomalous increased vascularization in medulloblastoma, the specific mechanism is still far from clearly understood. A correlation between molecular medulloblastoma subgroups and hemorrhagic features has not been reported, although recent preliminary studies described that WNT-subtype tumors display increased vascularization and hemorrhaging...
2016: BMC Neurology
H Song, L-M Han, Q Gao, Y Sun
OBJECTIVE: Medulloblastoma is the most common malignant brain tumor in children. Despite remarkable advances over the past decades, a novel therapeutic strategy is urgently required to increase long-term survival. This study aimed to understand the role of a long non-coding RNA (lncRNA), colorectal neoplasia differentially expressed (CRNDE), in medulloblastoma tumor growth. MATERIALS AND METHODS: The transcript level of CRNDE was initially examined in dissected clinical tissues and cultured cancerous cells...
June 2016: European Review for Medical and Pharmacological Sciences
Sumit Bansal, Sachin A Borkar, Ashish Suri, Mehar C Sharma, Ashok K Mahapatra
Medullomyoblastoma is a variant of medulloblastoma with an aggressive course. It is typically seen in children less than 10 years of age and usually arises from the cerebellar vermis. Authors report an unusual case of medullomyoblastoma arising from the right middle cerebellar peduncle in an adult patient and pertinent literature is reviewed regarding this uncommon entity.
July 2016: Asian Journal of Neurosurgery
Y Li, M M Li, Y Zhang, J L Cheng, Z G Shang, C X Bu
OBJECTIVE: To analyze magnetic resonance images of the posterior cranial fossa tumors, and evaluate the texture characteristics of three kinds of children's posterior cranial fossa tumors by support vector machine (SVM). METHODS: From May 2008 to August 2015, a total of 76 patients with children's posterior cranial fossa tumors in First Affiliated Hospital of Zhengzhou University were retrospectively analyzed, texture analysis was performed on the three types of tumors...
June 21, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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