Clinical question: Preop for brain biopsy. Signs and symptoms: Preop for brain biopsy. Pre-and post-enhanced fusion brain MRI:Examination is performed as a surgical guidance and is not a complete diagnostic test.Examination demonstrate extensive patchy foci of T2 hyperintensity in the subcortical and periventricular white matter as well as bilateral basal ganglia, thalami, midbrain and pons without change since prior exam from 3 -- 7 -- 15. There is no detectable abnormal parenchymal or leptomeningeal enhancement. This is a similar observation is prior to study. Mild prominence of lateral ventricles with maintained midline also remains similar to prior exam. The signal void of major intracranial arterial branches are identified.The signal intensity and pattern of enhancement of the intracranial venous sinuses are within normal.There is a tiny subcutaneous nodule of increased T2 signal intensity measuring approximately 8mm in size in the right temporal scalp similar to prior study.
Surgical planning exam as detailed above and without evidence of any change since prior diagnostic pre and post enhanced brain MRI from 3 -- 7 -- 50