Diffuse cerebral blood vessel hyperdensity
Headache, seizure, fever and vomiting for 8 days.
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All cranial vessels (arteries and veins) appear abnormally hyperdense on non-enhanced CT images, however, after IV contrast injection, normal opacification is seen without evidence of thrombosis.
Hypodensity in the left cerebellar hemisphere without post contrast enhancement. No intraparenchymal hemorrhage. No hydrocephalus.
Hyperdense cranial vessels with normal opacification on post-contrast images - these findings can be seen in entities such as:
- elevated hematocrit
- severe dehydration
Hypodensity in the left cerebellar hemisphere without post contrast enhancement suspicious for ischemic/infectious insult rather than mass lesion. MRI can give additional information.