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Doctor insights on: Hypodensity On Ct Scan Brain

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What does a hypodense white matter lesion on CT scan mean?

What does a hypodense white matter lesion on CT scan mean?

White matter lesions: Lesions in the brain are not good. Hypodense lesions are seen which lead to further studies to evaluate the lesions for infection or malignancy. Discuss any findings with your neurologist (ms, sarcoid) or neurosurgeon. ...Read more

Dr. William Singer
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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What does nonspecific, subtle subcortical left frontal lobe hypodensities without significant mass mean on ct scan impression?

What does nonspecific, subtle subcortical left frontal lobe hypodensities without significant mass mean on ct scan impression?

Nothing w/o symptoms: The impression of a CT scan means nothing unless there are symptoms or signs that warrant the scan to begin with. Why was the CT scan ordered? What symptoms did you have? The impression says that there are less dense spots in the left front part of the brain, but no mass, no tumor. The cause (& significance) of the spots is unknown. Talk to the doctor who ordered the test or use HealthTap Prime. ...Read more

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18 mnth after tb meningitis her ct scan says Diffuse atrophic changes in d bilateral cerebral hemisphere with large hypodensity in lft internal capsule, She's 23 and hs spasm in limbs. Any hope?

18 mnth after tb meningitis her ct scan says Diffuse atrophic changes in d bilateral cerebral hemisphere with large hypodensity in lft internal capsule, She's 23 and hs spasm in limbs. Any hope?

Mgt/workup: The TB appears to have spread and may be difficult to treat. I would suggest that they obtain CSF cultures for TB with sensitivities to guide the multi-drug therapy. The head CT scan can then be followed once she is on targeted therapy.
Checking for a pulmonary source and a screening chest XR
The spasm of her limbs may be from a prior episode of encephalitis based on her history. ...Read more

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18 mnth after tb meningitis her ct scan says Diffuse atrophic changes in d bilateral cerebral hemisphere with large hypodensity in left internal capsule, she's 23 yrs nd hs spasm in limbs, Any hope?

18 mnth after tb meningitis her ct scan says Diffuse atrophic changes in d bilateral cerebral hemisphere with large hypodensity in left internal capsule, she's 23 yrs nd hs spasm in limbs, Any hope?

There is hope: TB meningitis is a problem world wide. Unfortunately it can leave long lasting problems. When blood supply lost to part of brain it doesn't heal. But she is young and with physical and occupational therapy, she could improve dramatically. Don't give up hope! ...Read more

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Should we CT scan the brain for dizzyness?

Should we CT scan the brain for dizzyness?

MRI is the: Single best imaging test. It should be performed without and with contrast. However, there are some physical diagnostic tests that may provide an answer. ...Read more

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Could a CT scan see a brain lesion?

Could a CT scan see a brain lesion?

Yes: Yes, but not always. A ct scan with IV contrast will be more sensitive for detecting lesions than a non-contrast ct, and an MRI with contrast is even better than a ct scan. ...Read more

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What are the risks of a brain CT scan?

What are the risks of a brain CT scan?

Very safe in general: A plain ct scan really only caries the risk of a fairly modest radiation exposure, so we typically only start to worry about this for people who get many cts in a single year. If it is being done with intravenous contrast, then there is a risk of allergic reaction to the iodine, as well as some risk of kidney damage in those with underlying kidney risk factors (eg elderly, diabetes). ...Read more

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Why do I see spots in my brain CT scan?

Need more info: I'm not sure what you are describing. I'd consult your doctor or the radiologist who read the study. ...Read more

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What does the pet/ct scan of the brain tell you?

What does the pet/ct scan of the brain tell you?

Looking for what?: It depends on what is being looked for. Pet/ct looks at the metabolism. Or the function of the area scanned (brain in this case), using different radioactive drugs, or tracers. The most common is f-18 fdg, an analog of glucose, which images glucose consumption.

Other radiotracers look at protein synthesis or for evidence of the plaques that are associated with alzheimer's. ...Read more

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Please tell me, could a CT scan see a brain lesion?

Please tell me, could a CT scan see a brain lesion?

Typically yes: Yes, ct scans can typically pick up most brain lesions. Some lesions are very small though and can only be seen on an MRI which is more sensitive. ...Read more

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Would a brain CT scan usually be enough in detecting meningitis?

Spinal tap: Diagnosis of meningitis is not by ct scan, but spinal tap. Obtaining cerebrospinal fluid allows your physician to find out about severity of the meningitis, as well as help find out what organism caused it. This information is important for treatment. ...Read more

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Would a CT scan show if sjogren's syndrome is affecting my brain?

No: Sjogren's syndrome can be diagnosed by antibody testing and minor salivary gland biopsy. A ct scan will not show sjogren's syndrome. It can have a lot of systemic symptoms in some people, but generally not on the brain itself. ...Read more

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Can a CT scan detect a brain tumer? Can u have normal scan but have one?

Can a CT scan detect a brain tumer? Can u have normal scan but have one?

Yes: It can detect a brain tumor, but will be better able to detect a tumor if it performed with IV contrast. Mri with contrast can detect very small tumors that may not be seen with a ct scan. However, it is very uncommon for a 28 yr old to have a brain tumor- not impossible- just uncommon. ...Read more

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Ct scan showed 18mm intrasellar mass in brain. What does this mean for me?

Ct scan showed 18mm intrasellar mass in brain. What does this mean for me?

Intrasellar mass: The sella turcica is where the pituitary gland is located. Most intrasellar masses are related to the pituitary gland. There are a variety of neoplastic and non-neoplastic masses. The most common tumor in adults is pituitary adenoma. Speak with your doctor about this. You've had a CT scan, but an MRI scan is far better at evaluating these. ...Read more

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How is a lhermitte duclos tumor detected? Would it show on CT scan of brain?

Maybe: L'hermitte-Duclos disease is a very condition that is not cancerous by itself. Since the majority involve the cerebellum, that is not a strong point for CT imaging because of the bones. They get in the way. Under certain conditions it may be visible. MRI is now a days the way to go. ...Read more

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Ct scan showed 18mm intrasellar mass in brain. Can you tell me what this means?

Intrasellar mass: The sella turcica is where the pituitary gland is located. Most intrasellar masses are related to the pituitary gland. There are a variety of neoplastic and non-neoplastic masses. The most common tumor in adults is pituitary adenoma. Speak with your doctor about this. You've had a CT scan, but an MRI scan is far better at evaluating these. ...Read more

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Can you please tell me if a CT scan of brain would show signs of Dyplastic gangliocytoma?

Can you please tell me if a CT scan of brain would show signs of Dyplastic gangliocytoma?

MRI is better: MRI is the best imaging study for dysplastic gangliocytoma. Many are visible on CT scans, but the abnormality is much better visualized and characterized on an MRI. ...Read more

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Would my regular CT scan have picked up an unruptured brain anurysm? I'm so scared tht I have one

Would my regular CT scan have picked up an unruptured brain anurysm? I'm so scared tht I have one

Brain Aneurysms: Unless the aneurysm is very large a regular CT scan may miss it. MRI, MRA or angiogram are more sensitive tests. If you have a family history of aneurysms, have high blood pressure, age over 40, smoke cigarettes, use Cocaine or have known blood vessel abnormalities then you are at higher risk. ...Read more

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I have major headaches and I've had a CT scan of my brain done! Everything looked normal what could it be?

I have major headaches and I've had a CT scan of my brain done! Everything looked normal what could it be?

Need to be evaluated: If your headaches are persistent, you need to be fully evaluated, and you may need to see a neurologist specialized in headaches to look for a correctable or treatable cause for headaches, such as sinus disease, migraines, cluster headaches. Also, if the headaches are severe and suggest a serious cause, you may need to have an mri/mra, which are considerably more sensitive tests than a ct scan. ...Read more

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The CT scan brain results suggest that they a probability of demyelinating disease. Is this normal at my age?

The CT scan brain results suggest that they a probability of demyelinating disease. Is this normal at my age?

No, but...: Mri scans are more sensitive and specific for demyelination than ct scans. This means that not only are mris better at finding it when it's present, but not finding it on an MRI means that it's almost certainly absent. "suggestive" findings of demyelination on a brain ct that is not seen on an MRI are generally treated as "false-positive." that gets into the science of testing (no room here). ...Read more

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What is a CT scan (brain) used for?

See the brain, skull: While xrays show the bones, a ct is sensitive enough to see the brain and its structures. Ct is vers useful to see blood, abnormal fluid collections, masses, areas of old or subacute stroke. The skull, sinuses, scalp and facial bones, eyes, mouth are also seen. Mri is even more sensitive for visualization of the brain and other soft tissue structures and may be required if the ct is positive. ...Read more

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Why would they want CT scan of brain?

Why would they want CT scan of brain?

Many reasons: There are many reasons to order a ct scan of the brain. Too numerous to list here. But I'm guessing your doctor has some clinical suspicion a process in the brain is responsible for your symptoms and is using a ct head to help make the diagnosis. ...Read more

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Can Ct Scan damage brain, effect activity of brain?

Can Ct Scan damage brain, effect activity of brain?

No: The x ray radiation in a CT has no measurable or known effect on neural tissues. 1) dose is way too low and 2) nerves are relatively radioresistant since the cells don't reproduce very fast, if at all.
There is a theoretical risk of cataracts and cancer years later, but this is incredibly small esp. For a single scan and controversial anyway. ...Read more

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Just had a CT scan of brain. What do patchy areas mean?

Of what?: Patchy areas means that there area scattered areas of something on the scan. Usually in a head ct it will be patchy areas of white matter low attenuation/density. This finding is usually associated with aging and vascular disease but if it is in you and you're 26 then it is not normal aging and could be something like multiple sclerosis. Find out what it actually says though. ...Read more

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What does a CT scan of the brain without contrast show?

What does a CT scan of the brain without contrast show?

Some things: CT scan of brain without contrast shows basic anatomy of brain, gray white matter differentiation, ventricles, and physiologic calcifications. Ventricles enlarged/ hydrocephalus, mass effect with displacement of normal structures, some bleeding, abnormal calcifications in tumors or old subdural hematomas, fractures. CT with contrast adds enhancement of certain lesions not seen, hyper/hypo vascular. ...Read more

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What could be wrong if a CT scan shows brain abnormalities?

What could be wrong if a CT scan shows brain abnormalities?

CT sees many things: Ct is most commonly used to look for a stroke, bleed, cancer or traumatic injury. Ct can see many other things which are too numerous to list. ...Read more

Dr. Michael Gabor
1,885 Doctors shared insights

Ct Scan (Definition)

Computed tomography (ct scan) or computed axial tomography (cat scan), is a medical imaging procedure that utilizes computer-processed x-rays to produce tomographic images or 'slices' of specific ...Read more