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  • brain tumor
  • The PDQ childhood brain tumor treatment summaries are primarily organized according to the World Health Organization classification of nervous system tumors. (cancer.gov)
  • For a full description of the classification of nervous system tumors and a link to the corresponding treatment summary for each type of brain tumor, refer to the PDQ summary on Childhood Brain and Spinal Cord Tumors Treatment Overview . (cancer.gov)
  • The Austrian Brain Tumor Registry (recruitment period, 1996-2006) confirmed that AT/RTs represented the sixth most common malignant brain tumor among 311 newly diagnosed children (6.1%), with a peak incidence during the first 2 years of life. (cancer.gov)
  • Medulloblastoma (MB) is the most common malignant brain tumor of pediatric age and is characterized by cells expressing stem, astroglial, and neuronal markers. (readbyqxmd.com)
  • Thirty consecutive children (1-182 days old) who underwent primary resection for a brain tumor during the years 1973-2012 were included in this retrospective study on surgical morbidity, mortality rate, academic achievement, and/or work participation. (springer.com)
  • however, infants may tolerate brain tumor surgery remarkably well. (springer.com)
  • We retrospectively analyzed a consecutive cohort of 30 patients in their first 6 months of life (aged 183 days or younger) who underwent resection for a brain tumor in the Department of Neurosurgery, The National Hospital, Oslo, Norway, between 1973 and 2012. (springer.com)
  • childhood
  • The exact incidence of childhood CNS AT/RT is difficult to determine because the tumor has only been recognized since 1996. (cancer.gov)
  • Prasad VS, Basha A, Prasad BC, Reddy DR. Intraspinal tumour presenting as hydrocephalus in childhood. (springer.com)
  • primary
  • The histologic properties of extracranial GCTs are heterogeneous and vary by primary tumor site and the sex and age of the patient. (wellspan.org)
  • Primary cardiomyopathies represent a group of diseases characterized by primary structural and functional changes of the myocardium, without myocardial ischemic disease, hypertension, valvulopathies or congenital cardiac diseases being involved. (rjme.ro)
  • immunohistochemical
  • 1 , 2 ] Brain tumors are classified according to histology, but immunohistochemical analysis, cytogenetic and molecular genetic findings, and measures of mitotic activity are increasingly used in tumor diagnosis and classification. (cancer.gov)
  • mutations
  • Up to 35% of patients may present with germline mutations and be prone to synchronous, multifocal tumors. (cancer.gov)
  • Fifteen tumors had homozygous deletions of one or more exons of the INI1 gene, and the other 14 tumors demonstrated mutations. (aacrjournals.org)
  • infantile
  • The authors report on their institutional experience with both tumors, focusing on radio-graphic features, especially the diffusion studies, which might be useful in distinguishing between infantile GBM and DIT. (thejns.org)
  • A retrospective review was undertaken of all infantile brain tumors treated at British Columbia's Children's Hospital between 1982 and 2012, and cases of GBM and DIT were recorded. (thejns.org)
  • Magnetic resonance imaging, especially diffusion-weighted imaging, may be a useful aid in distinguishing between infantile GBM and DIT tumors, with infantile GBM demonstrating restricted diffusion. (thejns.org)
  • younger
  • In two North American prospective studies performed by the Children's Cancer Group and the Pediatric Oncology Group for children aged 3 years or younger at diagnosis, retrospective review disclosed that approximately 10% of children with brain tumors had AT/RTs. (cancer.gov)