35-year-old female status post cerebral cavernous reformation resection. Redemonstrated are changes from left subtemporal approach for pontine cavernous reformation resection. Pneumocephalus has resolved. Redemonstrated is susceptibility hypointensity with associated T2 hypointensity within the left pons contain a few foci of internal T1 hyperintensity. Perilesional vasogenic edema has decreased, with a small amount of residual within the middle cerebellar peduncles bilaterally (left more than right). Compared to the presurgical images, there is now significantly less mass effect and anatomic deformation. Postprocedural dural enhancement is again noted.There is a small focus of ill-defined T2 hyperintensity with associated enhancement just anterior to the left precentral gyrus, in a subcortical location, most consistent with either a tiny developmental venous anomaly or a capillary telangiectasia.Ventricular sizes are normal. Expected vascular flow voids are demonstrated. The paranasal sinuses and right mastoid air cells are clear. Fat packing is now noted within the expected region of left mastoid air cells.
Susceptibility hypointensity with associated T2 hypointensity within the left pons contain a few foci of internal T1 hyperintensity. Perilesional vasogenic edema has decreased, with a small amount of residual within the middle cerebellar peduncles bilaterally (left more than right). Compared to the presurgical images, there is now significantly less mass effect and anatomic deformation. These findings are consistent with the postprocedural appearance of a cerebral cavernous reformation.