A 20-year-old male asked:
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would a cat scan show the inflammation or swelling from primary amoebic meningoencephalitis? if there was signs would there then be a spinal tap?

2 doctor answers
Dr. Gil Tepper
34 years experience Orthopedic Spine Surgery
Mri is better: Probably this is true. However and MRI i of the brain may be more sensitive. Either way a spinal tap would be confirmatory.
Answered on Jun 10, 2014
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Dr. Steven Chmielewski
29 years experience Diagnostic Radiology
Maybe.: Ct is not the best test for early infectious processes in the brain. Mri with contrast is best, but much longer and not always available. If amebic encephalitis is suspected, a lumbar puncture (spinal tap) would be appropriate, even if the ct is normal.
Answered on Mar 18, 2014
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