What is the difference between leptomeningeal and pachymeningeal enhancement?
The leptomeningeal metastases are thinner and irregular than pachymeningeal, that are thick and shaped have focal mass.
Dural mass in the superior temporal sulcus, not seen in T1, isointense to the gray matter in T2/FLAIR, shows restricted diffusion on DWI/ADC, presents intense and homogeneous enhancement to gadolinium, in MRS shows increased choline peak and decreased NAA, effect of mass in the middle and inferior temporal gyri, is associated with vasogenic edema and dural enhancement. No hydrocephalus, no intracranial hemorrhage.
Additionally, tumor activity is observed in the right upper branch of the mandible.