 Compared to/2/2014, there is no significant change in enhancing lesion filling the left internal auditory canal measuring 8 x 13 x 5 mm in the AP, transverse, and craniocaudal dimensions. It extends laterally to level just proximal to the cochlear aperture. Bilateral cerebellopontine angle cisterns and the right internal auditory canal appear unremarkable. There is mild fluid in the left mastoid air cells, unchanged.There are few scattered foci of T2/flair hyperintensity in the periventricular and subcortical white matter which are nonspecific but compatible with mild chronic small vessel ischemic changes. Tiny focus of susceptibility is seen in the left occipital lobe consistent with chronic microhemorrhage. Remainder of the brain is unremarkable. There is no acute infarct, intracranial mass effect, or midline shift. No extra-axial collections or hydrocephalus. Bone marrow and extra cranial soft tissues are unremarkable.
1. Compared to 8/2/2014, unchanged enhancing lesion involving the left internal auditory canal consistent with a vestibular schwannoma.2. Mild chronic small vessel ischemic changes. Punctate focus chronic microhemorrhage in the left occipital lobe.