Female, 18 years old, pregnant (16 weeks) with history of multiple sclerosis and continuing headaches, tremor, paresthesias. Left hemibody paresthesias and right hemibody weakness for two years. Left eye vision loss. Concern for demyelinating disease. Patchy hyperintensity seen within the pons on T2 weighted images is felt to be artifactual as it is not confirmed on the FLAIR or any other sequence.The cerebral and cerebellar hemispheres and brainstem are otherwise unremarkable. Diffusion-weighted images show are normal. No definite white matter lesions are seen.No intracranial hemorrhage, mass, edema or midline shift is noted. No abnormal extra-axial fluid collection is present. The ventricles and basal cisterns are patent and normal in size.
No definite findings are seen which would account for the patient's symptoms. Patchy T2 hyperintensity within the pons is felt to be artifactual. If clinically warranted, however, repeat imaging with contrast can be considered after delivery.