 Again seen are postsurgical changes of resection of previous seen enhancing extra-axial mass at the right cerebellopontine angle via retrosigmoid approach. There is no abnormal enhancement to suggest residual or recurrent tumor. There is decrease in soft tissue enhancement at the craniectomy site without discrete fluid collections.The bilateral internal auditory canals are symmetrical and normal in size and signal intensity. The inner ears are normal, with normal T2 signal and no pathological enhancement. No abnormal mass or abnormal enhancement is seen within the cerebellopontine angle cisterns bilaterally or within the internal auditory canals. Limited evaluation of the remainder of the brain parenchyma demonstrates no evidence of intracranial mass effect, herniation, or hydrocephalus.
Postsurgical changes of resection of right cerebellopontine angle meningioma without evidence of residual or recurrent tumor. There is decrease in soft tissue enhancement at the right lateral occipital craniectomy site compatible with granulation tissue.