A 29-year-old female asked:
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can ct scan without contrast show any brain tumors?

2 doctor answers
Dr. Alon Seifan
12 years experience Neurology
Yes: A ct scan will show brain tumors if they are large enough, have calcium or blood in them, or are causing swelling. On some occasions, contrast is necessary to see other types of tumors.
Answered on Apr 12, 2019
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Dr. Abhineet Chowdhary
17 years experience Neurosurgery
Sometimes: Brain swelling, hemorrhage and mass effect can be noted on a head ct without contrast. Also, some tumors have calcification a which can be seen in a head ct. Smaller and lower grade tumors can sometimes be missed on a head ct without contrast.
Answered on Apr 12, 2019

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A 36-year-old member asked:
Dr. Matthew Solhjem
20 years experience Radiation Oncology
Need more evaluation: It is very difficult to diagnose a brain tumor on a non-contrast ct scan. I would recommend getting a brain MRI with contrast (called gadolinium). M ... Read More
1
1 thank
A 21-year-old female asked:
Dr. Shams Sheikh
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 c ... Read More
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3 thanks
A 20-year-old male asked:
Dr. Kevin Yoo
Dr. Kevin Yoo answered
27 years experience Neurosurgery
MRI: A MRI with contrast is sufficient to detect evidence of a brain tumor. If there is any question as to whether a brain tumor is present or not, one can ... Read More
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