A heterogeneous mass (craniopharygioma) is seen widening the sella. The mass has a cystic component on the left side which has reduced significantly compared to the previous pre-operative study. The solid component on the right enhances heterogeneously and demonstrates a thick ring-like pattern after contrast injection. Overall, there is a reduction in tumor size, after the resection. Thinning of the chiasm is seen particularly on the right, there is displacement of the post-opthalmic segments of the internal carotid arteries and anterior cerebral arteries around the mass; all these findings are less pronounced compared to the previous study. Normal optic tracts and optic radiations. The pituitary stalk is now seen and displaced posteriorly. Normal flow voids and normal opacification post-contrast.
The T2 hyperintense, non-enhancing lesion in the left frontal lobe white matter follows CSF on all sequences except FLAIR. It has a hyperintense rim, centrally isointense to grey matter on FLAIR. This is unchanged since the previous study.