THE ROLE OF MRI TO DIAGNOSTIC OF GLIOMA TUMER
Hassan Jafar Hassan* and Anwar Abdulhasan Azeez
ABSTRACT
Gliomas are primary brain tumors originating from different supportive glial cells of the brain. According to the histological origin of the tumor cells gliomas can be mainly divided into Oligodendrogliomas, Oligoastrocytmas and Astrocytomas. Malignant Astrocytomas are called Glioblastoma multiforme and represent the second most common primary brain tumor in adults. Several studies investigating the incidence of gliomas by anatomic location reported the frontal and temporal lobe as the preferential sites. In general, these studies assigned gliomas to topographic locations according to the 10th version of the International Classification of Diseases (ICD-10) which includes the frontal, temporal, parietal and occipital lobes as well as ventricles and brainstem. An exact topographic localization of gliomas is mandatory for neurosurgeons as it determines resectability and therefore prognosis (Berger, Duffau,…). Previous studies and the ICD-10 classification only include 4 lobes and do not distinguish central, insular and limbic as separate locations that are important for neurosurgeons due to their eloquent function and common site of gliomas. This concept of the 7 lobes in addition with the deep seated nuclei and the corpus callosum will constitute the anatomical background of this thesis.
Keywords: MRI role, glioma, head tumors.
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