Showing posts with label MRI. Show all posts
Showing posts with label MRI. Show all posts
Tuesday, November 26, 2013
Tuesday, November 1, 2011
Clival Osteomyelitis, Cerebral Abscess and Empyema.
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| CECT - Empyema |
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| CECT - Right Temporal lobe abscess |
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| CT - Bone window: Lytic lesion in the clivus. |
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| Left sphenoid opacification |
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| Sagittal T1 - Clival lesion |
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| FLAIR: High signal lesion in left sphenoid and clivus |
FLAIR
DWI - Restriction
Friday, October 7, 2011
Sunday, September 11, 2011
Right PICA Territory Infarct
65 M,
On P/E:
Right horizontal nystagmus, Right dysmetria, dysdiadokinesia, and impaired right heel to shin test.
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| CT- stroke window |
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| DWI |
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| ADC |
Tuesday, September 6, 2011
Arachnoid Cyst
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| Axial T2 |
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| Axial Flair |
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| Axial T1 |
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| Axial T1 post gad |
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| DWI |
Most important differential:
Epidermoid Cyst (sebaceous cyst).
Differentiating points:
1. Arachnoid cyst shows no restriction on DWI, Epidermoids highly restrict!
2. Arachnoid cysts lose signal on FLAIR (iso to CSF), while epidermoids will be hyper to CSF on FLAIR.
Friday, August 12, 2011
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