Right vestibular schwannoma treated with resection and radiosurgery. There are postoperative findings related to right suboccipital cranioplasty, including right cerebellar encephalomalacia. There has been interval decrease in size and increased heterogeneity of the nodular component within the right cerebellopontine angle cistern, measuring 7 x 9 mm in axial cross-section, previously 8 x 12 mm. Otherwise, the linear enhancement along the anterior aspect of the skeletonized right internal auditory canal is unchanged to slightly more prominent, measuring up to 4 mm in thickness, previously 3 mm. There is absent fluid signal within the vestibule and semicircular canals, which may indicate labyrinthitis ossificans.
Interval decrease in size of the treated right cerebellopontine angle vestibular schwannoma. Otherwise, the adjacent linear enhancing component along the anterior aspect of the skeletonized right internal auditory canal is unchanged to slightly more prominent.