History of Guillain Barre with unilateral right-sided retroorbital headache (sharp pain without radiation) gradual onset, with visual disturbance. There appears to be mildly elevated T2 hyperintensity and perhaps minimal swelling of the left hippocampus. There is no evidence of intracranial hemorrhage or acute infarct. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, and scalp soft tissues are grossly unremarkable. There is mild mucosal thickening in the left sphenoid sinus.
1. Incompletely characterized apparent abnormality in the left hippocampus, which may represent encephalitis or perhaps less likely a neoplastic process, for example. Further evaluation via a seizure protocol MRI with contrast may be useful.2. Mild mucosal thickening in the left sphenoid sinus.