A 21-year-old female asked:
would a ct scan without contrast show a brain tumor or evidence one was there? what are the chances it won't? doc not concerned but my anxiety is :/
2 doctor answers
Dr. Shams Sheikh answered
21 years experience Radiology
CT can miss tumors: Ct is good to check for mass effect, swelling, and shift. If there is a tumor, may only see mass effects. Best to screen for mass effect by ct w/o contrast, and if symptoms persist brain mri.
Answered on Dec 17, 2016
Dr. Harry Zegel answered
49 years experience Radiology
See long answer: Ct without contrast is largely indicated for acute hemorrhage or infarcts. It may not show more subtle tumors. Mri with contrast is much more sensitive in the correct clinical situation. Talk to your dr. To see if further imaging evaluation is appropriate.
Answered on Jun 8, 2015
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