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It is possible that the main title of the report Astrocytoma, Anaplastic 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.
Anaplastic astrocytoma is a rare malignant brain tumor. Astrocytomas are tumors that develop from certain star-shaped brain cells called astrocytes. Astrocytes and similar cells form tissue that surrounds and protects other nerve cells found within the brain and spinal cord. Collectively, these cells are known as glial cells and the tissue they form is known as glial tissue. Tumors that arise from glial tissue, including astrocytomas, are collectively referred to as gliomas. The symptoms of anaplastic astrocytomas vary depending upon the specific location and size of the tumor. The specific cause of this tumor is unknown.
Astrocytomas are classified according to a grading system developed by the World Health Organization (WHO). Astrocytomas come in four grades based upon how fast the cells are reproducing and that likelihood that they will spread (infiltrate) nearby tissue. Grades I or II astrocytomas are nonmalignant and may be referred to as low-grade. Grades III and IV astrocytomas are malignant and may be referred to as high-grade astrocytomas. Anaplastic astrocytomas are grade III astrocytomas. Grade IV astrocytomas are known as glioblastoma multiforme. Lower grade astrocytomas can change into higher grade astrocytomas over time.
American Brain Tumor Association
8550 W. Bryn Mawr Avenue, Suite 550
Chicago, IL 60631
American Childhood Cancer Organization
10920 Connecticut Ave
Kensington, MD 20895
American Cancer Society, Inc.
250 Williams NW St
Atlanta, GA 30303
Harvard Brain Tissue Resource Center
115 Mill Street
Belmont, MA 02178
NIH/National Institute of Neurological Disorders and Stroke
P.O. Box 5801
Bethesda, MD 20824
Childhood Cancer Canada Foundation
21 St. Clair Avenue East, Suite 801
Ontario, M4T 1L9
Children's Brain Tumor Foundation
274 Madison Avenue, Suite 1004
New York, NY 10016
Brain Tumor Foundation for Children, Inc.
6065 Roswell Road Suite 505
Atlanta, GA 30328-4015
Rare Cancer Alliance
1649 North Pacana Way
Green Valley, AZ 85614
Pediatric Brain Tumor Foundation
302 Ridgefield Court
Asheville, NC 28806
Friends of Cancer Research
1800 M Street NW
Suite 1050 South
Washington, DC 22202
American Society of Clinical Oncology
2318 Mill Road Suite 800
Alexandria, VA 22314
Cancer Support Community
1050 17th St NW Suite 500
Washington, DC 20036
Lance Armstrong Foundation
2201 E. Sixth Street
Austin, TX 78702
National Brain Tumor Society
124 Watertown Street, Suite 2D
Watertown, MA 02472
Tel: (800) 770-8287
This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only. NORD recommends that affected individuals seek the advice or counsel of their own personal physicians.
It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email firstname.lastname@example.org
Last Updated: 3/17/2011
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