 This exam is severely degraded by motion artifact despite sedation. BRAIN: There are postoperative findings related to right suboccipital craniectomy and right internal auditory canal surgery. There is a small focus of subjacent T1 and T2 hyperintensity within the right cerebellum that is likely post-operative in nature. There are a few additional scattered small foci of T2 hyperintensity within the supratentorial white matter that most likely represent chronic small vessel ischemic disease. There is no evidence of acute intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. There are bilateral lens implants.IAC: This portion of the exam is limited due to lack of precontrast images. The original protocol was based on the order indication that stated "neurofibromatosis type I". The IAC portion of the exam was added by the interpreting radiologist due to EPIC review but after the injection of contrast. Within the right internal auditory canal there is a 6 x 7 mm focus of presumed moderate enhancement and T2 hypointensity. The labyrinthine structures are grossly unremarkable but not well evaluated on this exam.
1.Severely motion degraded exam.2.Postoperative findings related to right occipital craniectomy and right internal auditory canal surgery. Presumed moderate enhancement and T2 hypointensity within the right internal auditory canal is non-specific and likely representing scar/ granulation tissue however less likely possibility of a schwannoma cannot be entirely excluded. Comparison with prior outside imaging is recommended to assess for growth. Otherwise, follow-up imaging is recommended. 