Neuroblastoma Screening (PDQ®): Screening - Patient Information [NCI] - Changes to this Summary (06 / 20 / 2014)
To determine and implement optimum management, treatment is often guided by a multidisciplinary team of cancer specialists who have experience treating childhood brain tumors. The therapy for both children and adults with supratentorial high-grade astrocytoma includes surgery, radiation therapy, and chemotherapy. Outcome in high-grade gliomas occurring in childhood may be more favorable than that in adults, but it is not clear if this difference is caused by biologic variations in tumor characteristics, therapies used, tumor resectability, or other factors that are presently not understood. The ability to obtain a complete resection is associated with a better prognosis. Radiation therapy is administered to a field that widely encompasses the entire tumor. The radiation therapy dose to the tumor bed is usually at least 54 Gy. Despite such therapy, overall survival rates remain poor. Similarly poor survival is seen in children with spinal cord primaries and children with
Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Patient Information [NCI] - General Information About Childhood Central Nervous System (CNS) Atypical Teratoid / Rhabdoid Tumor
Central nervous system atypical teratoid/rhabdoid tumor is a disease in which malignant (cancer) cells form in the tissues of the brain.Central nervous system (CNS) atypical teratoid/rhabdoid tumor (AT/RT) is a very rare, fast-growing tumor of the brain and spinal cord. It usually occurs in children aged three years and younger, although it can occur in older children and adults. About half of these tumors form in the cerebellum or brain stem. The cerebellum is the part of the brain that controls movement, balance, and posture. The brain stem controls breathing, heart rate, and the nerves and muscles used in seeing, hearing, walking, talking, and eating. AT/RT may also be found in other parts of the central nervous system (brain and spinal cord).Anatomy of the brain, showing the cerebrum, cerebellum, brain stem, and other parts of the brain.Anatomy of the inside of the brain, showing the pineal and pituitary glands, optic nerve, ventricles (with cerebrospinal fluid shown in blue), and
Important It is possible that the main title of the report Arachnoid Cysts is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report. ...
Neuroblastoma Screening (PDQ®): Screening - Patient Information [NCI] - Stage Information for Pituitary Tumors
As with other tumors of the central nervous system (CNS), no tumor, nodes, metastases-based American Joint Committee on Cancer classification and staging system for pituitary tumors exists. Pituitary tumors are classified according to size and divided into microadenomas (i.e., the greatest diameter is <10 mm) and macroadenomas (i.e., the greatest diameter is ≥I0 mm). Most pituitary adenomas are microadenomas. The most widely used radioanatomical classification was based primarily on a neuroradiological examination including skull x-rays, pneumoencephalography, polytomography, and carotid angiography. Subsequently validated by the application of more accurate magnetic resonance imaging (MRI) and computed tomography, this radioanatomical classification places adenomas into 1 of 4 grades (I–IV) and has been augmented by additional studies including immunohistochemistry and electron microscopy. Currently, MRI is considered the imaging modality of choice for the diagnosis
Neuroblastoma Screening (PDQ®): Screening - Patient Information [NCI] - Cellular Classification of Childhood Brain Stem Glioma
Brain stem gliomas are classified according to their location, radiographic appearance, and histology (when obtained). Brain stem gliomas may occur in the pons, midbrain, tectum, dorsum of the medulla at the cervicomedullary junction, or in multiple regions of the brain stem. The tumor may contiguously involve the cerebellar peduncles, cerebellum, the cervical spinal cord, and/or thalamus. The majority of childhood brain stem gliomas are diffuse, fibrillary astrocytomas that involve the pons (diffuse intrinsic pontine gliomas [DIPG]), often with contiguous involvement of other brain stem sites.[1,2] The prognosis is extremely poor for these tumors. Focal pilocytic astrocytomas have a more favorable prognosis. These most frequently arise in the tectum of the midbrain, focally within the pons, or at the cervicomedullary junction where they are often exophytic, and they have a far better prognosis than diffuse intrinsic tumors.[3,4,5]The genomic characteristics of DIPG appear to
Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Patient Information [NCI] - Get More Information From NCI
Call 1-800-4-CANCERFor more information, U.S. residents may call the National Cancer Institute's (NCI's) Cancer Information Service toll-free at 1-800-4-CANCER (1-800-422-6237) Monday through Friday from 8:00 a.m. to 8:00 p.m., Eastern Time. A trained Cancer Information Specialist is available to answer your questions.Chat online The NCI's LiveHelp® online chat service provides Internet users with the ability to chat online with an Information Specialist. The service is available from 8:00 a.m. to 11:00 p.m. Eastern time, Monday through Friday. Information Specialists can help Internet users find information on NCI Web sites and answer questions about cancer. Write to usFor more information from the NCI, please write to this address:NCI Public Inquiries Office9609 Medical Center Dr. Room 2E532 MSC 9760Bethesda, MD 20892-9760Search the NCI Web siteThe NCI Web site provides online access to information on cancer, clinical trials, and other Web sites and organizations that offer support
Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Patient Information [NCI] - Stage Information and Treatment of Newly Diagnosed and Recurrent Childhood Brain Tumors
There is no uniformly accepted staging system for childhood brain tumors. These tumors are classified and treated based on their histology and location within the brain (Table 1).Table 1. The Staging and Treatment of Newly Diagnosed or Recurrent Tumors According to Type of Tumor or Pathologic SubtypeTumor TypePathologic SubtypeStaging and Treatment of Newly Diagnosed and Recurrent DiseaseCNS = central nervous system.Astrocytomas and Other Tumors of Glial Origin –Low-Grade AstrocytomasDiffuse fibrillary astrocytomaChildhood Astrocytomas TreatmentGemistocytic astrocytomaOligoastrocytomaOligodendrogliomaPilocytic astrocytomaPilomyxoid astrocytomaPleomorphic xanthoastrocytomaProtoplasmic astrocytomaSubependymal giant cell astrocytoma–High-Grade AstrocytomasAnaplastic astrocytomaChildhood Astrocytomas TreatmentAnaplastic oligoastrocytomaAnaplastic oligodendrogliomaGiant cell glioblastomaGlioblastomaGliomatosis cerebriGliosarcoma Brain Stem
Neuroblastoma Screening (PDQ®): Screening - Patient Information [NCI] - Get More Information From NCI
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.General InformationAdded text to state that the presence of the H3F3A K27M mutation occurs exclusively in diffuse high-grade pediatric astrocytomas (cited Gielen et al. as reference 35).Treatment of Childhood Low-Grade AstrocytomasAdded Gnekow et al. as reference 28.Added text to state that a multicenter, phase III, placebo-controlled trial of 117 patients confirmed these earlier findings; 35% of the patients in the everolimus group had at least a 50% reduction in the size of the SEGA, versus no reduction in the placebo group (cited Franz et al. as reference 54 and level of evidence 1iDiv).Treatment of Recurrent Childhood Low-Grade AstrocytomasAdded text to state that surveillance imaging will frequently identify asymptomatic recurrences (cited Udaka et al. as reference 4).Added Gnekow et al.
Childhood Brain Stem Glioma Treatment (PDQ®): Treatment - Patient Information [NCI] - Newly Diagnosed Childhood Brain Stem Glioma Treatment
Diffuse Intrinsic Pontine GliomasConventional treatment for children with diffuse intrinsic pontine glioma (DIPG) is radiation therapy to involved areas. Such treatment will result in transient benefit for most patients, but over 90% of patients will die within 18 months of diagnosis. The conventional dose of radiation therapy ranges between 54 Gy and 60 Gy given locally to the primary tumor site in single daily fractions. Hyperfractionated (twice daily) radiation therapy techniques have been used to deliver a higher dose, and studies using doses as high as 78 Gy have been completed. Evidence demonstrates that these increased radiation therapy doses do not improve the duration or rate of survival for patients with DIPG whether given alone,[1,2] or in combination with chemotherapy. Hypofractionated radiation therapy does not improve survival.[Level of evidence: 2A] Studies evaluating the efficacy of various radiosensitizers as a means for enhancing the therapeutic
Neuroblastoma Screening (PDQ®): Screening - Patient Information [NCI] - Changes to This Summary (10 / 07 / 2014)
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above. Editorial changes were made to this summary.