Brain MRI findings in patients with iTTP (representative images). Normal MRI without ischemic findings (A), small FLAIR hyperintense foci (>3-5 mm in length, arrows) in the cortical/subcortical region and deep white matter (B), punctate FLAIR hyperintense lesions (arrows) in the white matter (C), and confluent FLAIR hyperintensity (arrows) in the periventricular and deep white matter (in a patient without overt neurologic findings) (D).