Recurrent meningioma status post resection. Brain: There are postoperative findings related to recent biparietal craniotomy with scattered pneumocephalus and dural thickening and enhancement. There is interval decrease in size of the tumor along the falx cerebri, measuring up to 20 mm in craniocaudal thickness, previously 25 mm. There are mild foci of susceptibility effect in the brain parenchyma surrounding the surgical cavity, which may represent blood products. There are persistent confluent areas of T2 hyperintensity within the posterior cerebral hemisphere white matter bilaterally, which is compatible with vasogenic edema, as well as unchanged left parieto-occipital encephalomalacia. There is no convincing evidence of acute infarction. The ventricles and basal cisterns are unchanged in size and configuration. There is no midline shift or herniation. There is a partially empty sella. There is persistent right tympanomastoid fluid. MRV: There is lack of signal in the posterior superior sagittal sinus. The other dural venous sinuses are grossly intact.
1. Postoperative findings related to partial resection of the posterior falcine meningioma with interval decrease in size of the residual tumor along the falx cerebri.2. Persistent right tympanomastoid fluid may represent otomastoiditis.