A glioma is a type of tumor that starts in the brain or spine. It is called a glioma because it arises from glial cells. The most common site of gliomas is the brain.
Gliomas are classified by cell type, by grade, and by location.
Gliomas are named according to the specific type of cell they share histological features with, but not necessarily originate from. The main types of gliomas are:
Gliomas are further categorized according to their grade...
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A glioma is a type of tumor that starts in the brain or spine. It is called a glioma because it arises from glial cells. The most common site of gliomas is the brain.
Gliomas are classified by cell type, by grade, and by location.
Gliomas are named according to the specific type of cell they share histological features with, but not necessarily originate from. The main types of gliomas are:
Gliomas are further categorized according to their grade, which is determined by pathologic evaluation of the tumor.
Of numerous grading systems in use, the most common is the World Health Organization (WHO) grading system for astrocytoma, under which tumors are graded from I (least advanced disease — best prognosis) to IV (most advanced disease — worst prognosis).
Gliomas can be classified according to whether they are above or below a membrane in the brain called the tentorium. The tentorium separates the cerebrum (above) from the cerebellum (below).
Symptoms of gliomas depend on which part of...
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