Disorder of brain, unspecified [G93.9], Reason for Study: ^Reason: brain mets History: surveillance Redemonstration of suboccipital craniectomy with left cerebellar hemispheric metastatic lesion resection status. Multiple susceptibility lesions within the surgical field are again seen, unchanged.Craniectomy site pseudomeningocele is redemonstrated, unchanged in terms of its size and MR signal intensity.Somewhat irregular and linear enhancements along the resection margin are again seen, unchanged in terms of extent and MR signal characteristics since prior scan. Multifocal bihemispheric parenchymal enhancing nodules are again seen, unchanged since prior scan.No evidence of acute ischemic or hemorrhagic lesion.The ventricles, sulci and cisterns are unremarkable. The midline structures and cranial-cervical junction are normal. The paranasal sinuses and mastoid air cells are clear.
1. Post left suboccipital craniectomy with left cerebellar metastatic lesion resection status. Unchanged postoperative changes including surgical field products related susceptibility lesions and craniectomy site pseudomeningocele.2. No difference of left side resection site enhancements. No evidence of tumor recurrence or residual mass.3. Unchanged multiple enhancing metastatic nodules since prior scan. 4. No evidence of new ischemic or hemorrhagic lesion.