 There are post-therapy findings related to right parietal craniotomy and subjacent lesion resection with multiple foci of susceptibility effect and some foci of T1 hyperintensity compatible with old blood products. There is a new 7.4 x 3.4 cm region of heterogenously enhancing tissue within the right parietal lobe resection bed. There is significantly elevated relative cerebral blood volume within the majority of the enhancing tissue, most significantly within the anterior and posterior portions of the mass. There is markedly increased T2 hyperintensity throughout the right cerebral white matter and corpus callosum as well as the right thalamus. New signal abnormality conforming to the corticospinal tract in the right cerebral peduncle and right medullary pyramid is compatible with Wallerian degeneration. There is increased mass effect upon the right lateral ventricle and 8-mm leftward midline shift, previously 5 mm. There is no evidence of acute infarct. The major cerebral flow voids are intact. There is unchanged minimal punctate non-specific enhancement within the left internal auditory canal.
Findings compatible with disease progression.