Male, 79 years old, with acoustic neuroma status post radiosurgery on 4/17/2015, bibasal changes. A tumor is redemonstrated involving the left CP angle and IAC. The lesion enhances heterogeneously. On comparison with the prior examination, there has been no significant interval change in size.No additional enhancing lesions are seen. Patchy periventricular white matter T2 hyperintensity is unchanged. No evidence of parenchymal edema or mass effect is detected. No acute intracranial hemorrhage or any abnormal extra-axial fluid collections are seen. The ventricles and sulci are slightly prominent compatible with parenchymal volume loss.
1.A treated schwannoma involving the left CP angle and IAC shows no interval change in size.2.No new enhancing lesions are seen.