The patient is a 13-year-old female with history of neurofibromatosis. Cerebellar tumor resection in June 2005. Tinnitus, vertigo, ear pain and decreased hearing. Again seen is hypodensity in the left cerebellar hemisphere partially surrounded by calcified rim which appears unchanged from the prior study. Midline posterior craniectomy defect and postoperative changes in posterior fossa appear similar to the prior study.Ventricular shunt catheter tubing enters the a right frontal approach with tip terminating near midline, also unchanged from the comparison study.There is no evidence of intracranial hemorrhage, mass or edema. The internal auditory canals are normal in caliber and symmetric. However, for evaluation of tumor at this site, MRI is recommended. The cerebral hemispheres, brainstem and remainder of the cerebellum are normal in morphology and attenuation.The ventricles and basal cisterns are normal in size and configuration.The calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
1. Normal caliber internal auditory canals. For evaluation for possible tumor at this location, we recommend MRI.2. Stable postoperative findings.