Cerebral amyloid angiopathy
Demented patient, presented with acute neurological symptoms. Patient is normotensive.
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T1, T2WI corresponds to mixed acute/early subacute bleed.
T2* shows the rest of the chronic foci of angiopathic microbleed
Top differential diagnoses of multifocal "black dots" on T2/T2* MR include:
- hypertensive microhemorrhages
- ischemic stroke with microhemorrhage
- multiple cavernous malformations (type 4)
- diffuse axonal injury
- hemorrhagic metastases
However, each of the above mentioned differential diagnoses has different clinical scenario and other imaging features.