Male, 54 years old, with headache and known brain tumor. Evidence of prior right parietotemporal craniotomy is again seen. The previously demonstrated extensive, irregularly marginated and infiltrative enhancing lesions involving the right parietal lobe as well as the right periatrial white matter and posterior medial temporal lobe have significantly decreased in size. The quantity of enhancement is much reduced with only minimal speckled enhancement seen through most of the lesion. The degree of adjacent T2 hyperintensity and mass effect have also improved. A focus of susceptibility along the right precentral gyrus likely represents a biopsy marker. Ill-defined bilateral periventricular T2 hyperintensity is unchanged. The size and morphology of the ventricles are also unchanged. No new lesions are seen.
Since the prior examination, the size of a previously quite extensive, infiltrative enhancing lesion involving the right parietal lobe and the periatrial white matter has substantially decreased in size. Associated T2 signal abnormality and edema have also improved.