Female 46 years old Reason: previous mri shows cerebellar edema with mass affect, reassess for interval improvement History: cerebellar edema with mass affect . There is improved edema in the posterior fossa with decreased T2 signal as well as decreased mass effect on the fourth ventricle and brainstem. The fourth ventricle and prepontine cistern are now essentially normal in size. The size of the lateral ventricles are minimally decreased compared to the prior exam, indicating likely resolution of obstructive component. Enhancement pattern of the resection cavity has also improved compared to the prior exam, now appearing more thin and smooth, previously thick and irregular.Enhancing lesions in the right anterior aspect of the pons and right occipital lobe are again seen and not significantly changed compared to the prior exam. Nonspecific enhancement in the right corona radiata is also unchanged. No new metastatic lesions are seen. Unchanged left frontal encephalomalacia. Unchanged postoperative findings of a occipital craniotomy and left frontal craniotomy. There is minimal unchanged cerebellar ectopia, with borderline low lying tonsils. The major cerebral flow voids are intact.
1.Improved edema in the posterior fossa with decreased mass effect on the fourth ventricle, which is now essentially normal in size. Previous mild increase in ventricular size has resolved. The enhancement pattern of the resection cavity has also improved.2.Right pontine lesion and right occipital lesion are unchanged compared to the prior exam. No new metastatic lesions are seen.