Fig. 1From: Area postrema syndrome with linear enhancement along the surface of the brainstem and fourth ventricle in autoimmune GFAP astrocytopathySagittal MRI shows abnormal signal intensities in the dorsal medulla oblongata including area postrema (arrows), with hyperintense on T2-weighted image and hypointense on T1WI (A, B). Sagittal T1-weighted postgadolinium imaging demonstrates linear enhancement along the surface of the brainstem and fourth ventricle (C, arrowheads). Sagittal T2-weighted imaging reveals resolution of T2-hyperintense lesion (D)Back to article page