Female, 10 years old. Previous cerebellar abnormality on imaging, compare with previous evaluate for change. Seizures, new onset HA There is no evidence of intracranial hemorrhage, mass, or acute infarct. Mild asymmetric prominence of the right cerebellopontine angle cistern of CSF signal intensity with mild flattening of the right cerebellum is not significantly changed from prior. There is no diffusion restriction. Otherwise, the ventricles and basal cisterns are normal in size and configuration. No abnormal extra-axial fluid collection is identified. There is no midline shift or herniation. There is no abnormal parenchymal or meningeal enhancement. The major cerebral flow voids are intact. There is enhancement and near complete opacification of the right sphenoid sinus and right ethmoid air cells, as well as moderate right maxillary sinus mucosal thickening. Adenoid hypertrophy is noted.
1.No evidence of intracranial hemorrhage, mass, or acute infarct.2.Unchanged mild asymmetric prominence of the right cerebellopontine angle cistern likely relates to a small arachnoid cyst.3.Prominent paranasal sinus thickening/opacification involving the right maxillary sinus, ethmoid air cells, and sphenoid sinus. Please correlate clinically.