The role of neuroimaging in patients with brain tumors is no longer simply to evaluate structural abnormality and identify tumor related complications by transitioning from a purely anatomy based discipline to one that incorporates functional hemodynamic metabolic cellular and cytoarchitectural . The imaging and clinical management of patients with brain tumor continue to evolve over time and now heavily rely on physiologic imaging in addition to high resolution structural imaging imaging remains a powerful noninvasive tool to positively impact the management of patients with brain tumor . Diagnosing brain tumors diagnosing a brain tumor involves completion of a series of tests to evaluate the patients symptoms and neurological functions most brain tumors are not found until after symptoms appear. When we analyze a potential brain tumor there are many questions that need to be answered one of the most important roles of imaging is to assess the extent of a tumor primary brain tumors are typically seen in a single region but some brain tumors like lymphomas multicentric glioblastomas and gliomatosis cerebri can be multifocal
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