An anaplastic astrocytoma is a high-grade, or malignant, glioma, a tumor of the glial (supportive) tissue of the brain. Anaplastic astrocytoma and glioblastoma multiforme, account for approximately 10 percent of pediatric central nervous system tumors.
www.childrenshospital.org/az/Site565/mainpageS565P0.htm... www.childrenshospital.org/az/Site565/mainpageS565P0.html
This case illustrates the difficulty in differentiating low grade or benign tumors from anaplastic astrocytoma. Both are in the biologic continuum of astrocytoma subtypes, the most common glial cell neoplasm. Anaplastic astrocytomas occupy an intermediate position between low-grade astrocytoma and glioblastoma multiforme.
brighamrad.harvard.edu/Cases/bwh/hcache/49/full.html
Anaplastic astrocytoma (grade III); Patients with anaplastic astrocytoma often present with seizures, neurologic deficits, headaches, or changes in mental status. The standard initial treatment is to remove as much of the tumor as possible without worsening neurologic deficits.
www.mayoclinic.org/glioma/astrocytomas.html www.mayoclinic.org/glioma/astrocytomas.html
The designation of a tumor as anaplastic astrocytoma (AA) reflects a distinct histologic classification of malignant glioma characterized by an abundance of pleomorphic astrocytes with evidence of mitosis. ... The Medscape Journal ... Allergy & Clinical Immunology...
www.medscape.com/medline/abstract/15497115?queryText=an... www.medscape.com/medline/abstract/15497115?queryText=anaplastic%20astrocytoma
METHODS: Conditional survival rate was estimated in 114 consecutive patients with anaplastic astrocytoma or glioblastoma multiforme. Conditional probabilities of surviving some years given survival to a specific period of time after craniotomy and 95% confidence intervals were calculated in the individual tumor survivors.
www.medscape.com/medline/abstract/14572960?queryText=an... www.medscape.com/medline/abstract/14572960?queryText=anaplastic%20astrocytoma
60% of low-grade astrocytomas occur in people aged 20-45 years; and 30% of low-grade astrocytomas occur in people older than 45 years. The mean age of patients undergoing a biopsy of anaplastic astrocytoma is 41 years.
emedicine.medscape.com/article/283453-overview
What is an anaplastic astrocytoma?; What are the symptoms of an anaplastic astrocytoma?; How are anaplastic astrocytomas classified?; How is an anaplastic astrocytoma diagnosed?; What are the treatments for an anaplastic astrocytoma?; How are side effects managed?; What is the expected outcome after treatment...
www.2xst.com/cancer/index4-AnaplasticAstrocytoma.html www.2xst.com/cancer/index4-AnaplasticAstrocytoma.html
Brain tumor treatment information: new treatments, virtual brain tumor trial, brain tumor links, important papers: Anaplastic Astrocytoma. ... Search Term: Anaplastic Astrocytoma; Search results are returned below separately for clinical trials, frequently asked questions, pages on this site, and news articles - scroll down...
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An astrocytoma is a glioma that develops from star-shaped glial cells (astrocytes) that support nerve cells. An anaplastic astrocytoma is classified as a grade III tumor.
www.braintumor.org/AnaplasticAstrocytoma/ www.braintumor.org/AnaplasticAstrocytoma/