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Doctor insights on: Does A Ct Scan Show Brain Tumors

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Dr. Chad Levitt
1 Doctor shared a insight

Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! The image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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Can CT scan without contrast show any brain tumors?

Can CT scan without contrast show any brain tumors?

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. Read more

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What types of brain tumors won't show up on a CT scan?

What types of brain tumors won't show up on a CT scan?

Small low grade mass: Some small low grade tumors that have not incited vasogenic edema could be missed on ct scanning. The addition of IV contrast would improve visualization of some tumors, but ct has limits in resolution when compared to mri. These are not the tumors that cause profound symptoms, frequently these small tumors are found incidentally when patients have scans for other reasons. Read more

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What happens if my CT scan didn't show the brain tumor?

What happens if my CT scan didn't show the brain tumor?

MRI: Mri with and without contrast is more sensitive for detecting tumors that ct is. Read more

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Non contrast CT scan show growing brain tumor, what is wrong?

Non contrast CT scan show growing brain tumor, what is wrong?

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). Mri takes a much better look at the brain than does ct. Read more

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Ct scan did not show brain tumor. Does that mean I'm in the clear?

Ct scan did not show brain tumor. Does that mean I'm in the clear?

No: Mri of the brain with gadolinium [contrst medium] may need to be performed... Before ruling out that you do not have brain tumor... Read more

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What kind of brain tumor would not show up on a CT scan? Why would it not be seen?

What kind of brain tumor would not show up on a CT scan? Why would it not be seen?

Many: Many types of brain tumors do not show up on ct scans, especially if it was done without IV contrast because they can look the same as normal brain tissue. Mri with and without gadolinium contrast is the best way to evaluate the brain for a tumor. Read more

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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 :/

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 :/

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. Read more

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Would a Brain MRI W/O Contrast & a CT Scan with and W/O Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

Would a Brain MRI W/O Contrast & a CT Scan with and W/O Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

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 opt to repeat the MRI of the brain with contrast three months after the last MRI brain was obtained. Read more

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Would a Brain MRI without Contrast & a CT Scan with and without Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

Would a Brain MRI without Contrast & a CT Scan with and without Contrast show a brain tumor causing symptoms? Worried that it could have been missed.

No symptomatic tumor: It is a pretty safe bet that MRI together with contrast CT can exclude a symptomatic tumor (mass) in the head. That does not mean all causes of headache or neurologic complaint are seen. Only your practitioner can give more advice to "put your mind at ease" and further direct your diagnostic journey. Read more

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Can a CT scan find a brain tumor?

Can a CT scan find a brain tumor?

Brain tumor: Some kinds of tumors are better diagnosed by ct and some by mri. Are you having issues with headaches, etc? You should see a doctor if you have any symptoms that make you worry about brain tumor. Read more

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Could CT scan cause a brain tumor?

Could CT scan cause a brain tumor?

Rare: Many ct scans of the head can theoretically cause brain cancer several years later. See radiology physicist at your hospital to calculate your dose and risk if you had many head ct scans. Read more

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What's the likelihood of a CT scan missing a brain tumor?

What's the likelihood of a CT scan missing a brain tumor?

CT not sensitive: Ct brain is a fast screening exam that is often used in the acute setting such as the emergency room. It is helpful in detecting obvious tumor and mass effect from the tumor. However, it is not sensitive in the detection of small tumor which does not produce mass effect or surrounding brain edema. Mri brain with and without contrast is the best imaging modality for detecting brain tumor. Read more

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Can anyone of you drs give me a website link of a CT scan with contrast showing a brain tumor?

Can anyone of you drs give me a website link of a CT scan with contrast showing a brain tumor?

Johns Hopkins site: Http://www. Hopkinsmedicine. Org/neurology_neurosurgery/specialty_areas/brain_tumor/diagnosis/how-to-diagnose-brain-tumors. Html and here's a nice scan of a tumor as well. Read more

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What brain tumors would not be seen on a CT scan? I have bad hypochondria, what are my chances of getting a tumor at 21? Always nervous about this.

What brain tumors would not be seen on a CT scan? I have bad hypochondria, what are my chances of getting a tumor at 21? Always nervous about this.

The best image of: The brain for tumor is mri. Ct scan without contrast is very insenstive for small lesions, but will see something large. Ct's amd mri's are expensive and are poor treatment for hypochondria. Did you ever consider seeing a psychotherapist? Read more

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If CT scan w&wo contrast came back normal with no brain tumor found 2 years and 7 months ago what's my risk to have one now if I have new symptoms?

It depends: It all depends on what kind of tumor was identified over two yrs ago. New symptoms strongly suggest that you need new studies. You should consult your neurologist or primary care m d. An MRI is more sensitive for soft tissue problems then a ct. Read more

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Last question I promise 2 years and 7 month ago I got a CT scan with and without contrast and it was clear? D I need to still worry about brain tumor

Last question I promise 2 years and 7 month ago I got a CT scan with and without contrast and it was clear? D I need to still worry about brain tumor

Most: 23 year old men do not need a head ct +/- contrast in the first place, and the exposure from the radiation when you do not need a scan is not worth repeating. Imaging is expensive and should only be done when necessary. You provide no information suggesting either ct or MRI is indicated. Read more

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Dr. Michael Gabor
1,858 Doctors shared insights

Ct Scan (Definition)

Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more


Dr. Henry Friedman
836 Doctors shared insights

Brain Tumor (Definition)

Can cause headaches, weakness, dizziness, seizures, and blurry vision. Also ...Read more