14-year-old with history of Guillain Barre and left temporal lobe masslike lesion: 3 month follow-up exam. There is persistent diffuse T2 hyperintensity in the head and body of the left hippocampus associated with minimal swelling and poorly defined internal architecture. There is no associated restricted diffusion or contrast enhancement. There is no abnormal signal or enhancement elsewhere in the brain. There is no evidence of intracranial hemorrhage or acute infarction. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major intracranial vascular flow voids are intact. There is near-complete opacification of the sphenoid sinuses, as well as partial opacification of the ethmoid air cells. The imaged mastoid air cells are clear. The orbits are unremarkable.
1. No significant interval change in the left hippocampus lesion, accounting for difference in technique. Differential considerations include a low-grade glioma or autoimmune encephalitis and less likely a sequela of infectious encephalitis.2. Findings suggestive of sinusitis.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.