Clinical question: Evaluate for low grade disseminated glial tumor. Signs and symptoms: Brain tumor. Pre-and post-enhanced brain MRI:Examination demonstrates extensive bilateral frontal white matter flair hyperintensity and with resultant ex vacuo dilatation of ventricles without evidence of appreciable interval change since prior exam. Extensive susceptibility signal changes primarily in the frontal horn of the left lateral ventricle remains similar to prior exam. Also similar to prior exam there is a thin fairly uniform band of enhancement along the ependymal lining of left frontal horn and body of lateral ventricle.Also stable since prior exam are additional nonenhancing patchy foci of flair hyperintensity in the periventricular white matter of the cerebral hemispheres as well as bilateral basal ganglia. There is no detectable new foci of flair hyperintensity or abnormal enhancement since prior study.Prominence of cortical sulci for patient's stated age of 51 similar to prior exam and suggestive of underlying parenchymal volume loss.Unremarkable calvarium and without abnormal enhancement.Unremarkable images through the orbits including axial fat sat post enhances.All visualized paranasal sinuses demonstrate normal pneumatization signal pattern.
1.No evidence of an acute or new finding since prior study.2.Diffuse bilateral anterior frontal encephalomalacia, ex vacuo dilatation of the ventricles and a thin uniform enhancement along the ependymal lining of the left frontal horn remains similar to prior exam.