Technique: Multiplanar, multisequence imaging has been obtained through the brain including pre and post contrast sequences.
Findings: Left-sided occipital craniotomy with expected post-operative change and prominent gliosis of the cerebellar hemisphere is again noted, with an enhancing nodule nestled between the medulla and the left cerebral hemisphere. On today's examination the nodule measures 10 x 12 x 16 mm compared to 9 x 9 x 14 mm one year ago (remeasured).
Extensive patchy white matter T2 signal hyperintensity is similar, with no abnormal restricted diffusion. No abnormal enhancement elsewhere, with the remainder of the brain appearing unremarkable.
On T2 axial imaging there appears to be a right-sided middle cerebral artery trifurcation aneurysm (4 x 3 mm). No prior vascular imaging is available.
Conclusion: Enhancing left cerebellar medullary angle nodule continues to slowly growing consistent with recurrent/residual tumour.
Probable right middle cerebral artery bifurcated aneurysm. This does not appear to have altered when compared to imaging from 2011 but warrants dedicated vascular imaging (CTA / MRA) if clinically indicated.