RT Journal Article SR Electronic T1 Thrombotic thrombocytopenic purpura: MR demonstration of reversible brain abnormalities. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 19 OP 20 VO 15 IS 1 A1 D'Aprile, P A1 Farchi, G A1 Pagliarulo, R A1 Carella, A YR 1994 UL http://www.ajnr.org/content/15/1/19.abstract AB We report a case of thrombotic thrombocytopenic purpura evaluated by MR. Multiple hyperintense foci on the T2-weighted images, observed principally in the brain stem and in the region of the basal nuclei, and neurologic signs disappeared after 15 days of therapy.