Inflammatory pseudotumor: headaches. The enhancing dural-based enhancing lesion along the left parietal convexity, deep to the craniotomy flap, appears to have increased in size, measuring 6 mm in thickness, previously 4 mm. There is unchanged superior left frontoparietal encephalomalacia and gliosis. There is no acute intracranial hemorrhage. The ventricles are unchanged in size. There is no evidence of acute infract. There is unchanged faint T1 hyperintensity in the deep cerebellar nuclei, which may be related to cumulative gadolinium-based contrast administration. There cerebellar tonsils remain slightly low-lying. There are postoperative findings related to right mastoidectomy. There is minimal left maxillary sinus mucosal thickening.
Mild interval increase in thickness of the dural based pseudotumor along the left parietal convexity. 