 There does appear to be enhancing material extending into the left CP angle at the level of the left porus acusticus which would be consistent with residual acoustic neuroma. However, due to the technique utilized for head CT acquisition, this study is relatively insensitive for thorough evaluation of the internal auditory canals. If dedicated imaging of this suspected residual acoustic neuroma would be clinically beneficial, MRI with contrast would be recommended. Left occipital calvarial changes would be consistent with a left-sided approach for prior acoustic neuroma surgery.The ventricles and sulci are normal in size. There are no masses, mass effect or midline shift. There is no evidence for intracranial hemorrhage or acute cerebral or cerebellar cortical infarction. There are no extraaxial fluid collections or subdural hematomas. Mucosal thickening is present throughout the bilateral ethmoid air cells. Otherwise the visualized portions of the paranasal sinuses and mastoid air cells are clear. There is no abnormal enhancement within the brain.
1.There does appear to be enhancing material extending into the left CP angle at the level of the left porus acusticus which would be consistent with residual acoustic neuroma. However, due to the technique utilized for head CT acquisition, this study is relatively insensitive for thorough evaluation of the internal auditory canals. If dedicated imaging of this suspected residual acoustic neuroma would be clinically beneficial, MRI with contrast would be recommended. 2.Mucosal thickening is present throughout the bilateral ethmoid air cells. 3.No CT evidence of intracranial metastatic disease.