Cerebral Amyloid Angiopathy

Cerebral amyloid angiopathy is characterized by deposition of homogeneous eosinophilic material in the media and adventitia of arterioles and small arteries of the cortex and leptomeninges. The usual neurolog-

Thrombotic thrombocytopenic purpura in a 53-year-old woman with altered mental status and seizures. a Computed tomography shows a hemorrhage in the right parieto-occipital area (arrow) and a wedged-shaped area of low density more peripherally in the right occipito-parietal area (arrowheads). b T2-weighted and c FLAIR images show corresponding hyperintense lesions in the deep white matter and right occipito-parietal area (arrowheads). Hemorrhage is seen as a hy-pointense lesion (arrow).d On DW image, deep white matter lesions are isointense, mainly representing vasogenic edema, while a cortical lesion in the right occipitoparietal area is hyperintense, representing acute infarction (arrowheads). Hemorrhage is hy-pointense with a hyperintense rim (arrow)

Erotic Noose Amyloid Angiopathy

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