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Doctor insights on: Brain Tumour Causing Sudden Compression Of Optic Nerve

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Dr. Andrew Ho Dr. Ho
1 doctor agreed:
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If i had brain tumor and it was effecting vision would my dr see pressure on my optic nerve?

Dr. Andrew Ho Dr. Ho
1 doctor agreed:
If i had brain tumor and it was effecting vision would my dr see pressure on my optic nerve?

Maybe not: Some brain tumors do not put any pressure on the optic nerve. On the other hand, there are lots of other causes of vision problems. It is probably not worthwhile jumping to conclusion that your vision problem is caused by a brain tumor. ...Read more

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Dr. Henry Friedman
814 doctors shared insights

Brain Tumor (Definition)

Brain cancer refers to cancer located in the brain. It can occur from a metastasis from a tumor in another part of the body or can originate in the brain. Symptoms of brain cancer include headaches, weakness, dizziness, seizures, and blurry vision. It can sometimes be asymptomatic as, for example, in patients with small cell lung cancer. It is always best to use MRI with contrast to make an evaluation, since using a CT can cause you to miss ...Read more


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Can you list eye manifestation due to brain tumor compress optic nerve?

Can you list eye manifestation due to brain tumor compress optic nerve?

Visual field defects: As the tumor compresses the optic nerve, there will be a visual field defects. This can be in one eye if it happens before the optic chiasm or in both eyes if it happens after the chiasm. If there is any visual field defects, the tumor should be removed. ...Read more

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My 7 year old son has to get an MRI after an eye exam that showed his optic nerve is larger than normal. Could this mean he could have a brain tumor?

My 7 year old son has to get an MRI after an eye exam that showed his optic nerve is larger than normal. Could this mean he could have a brain tumor?

More complicated : This is more complicated than yes or no. Let's not jump to the worst thing first. Many reasons can lead to optic nerves that are different. Let's see what is causing this finding. ...Read more

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If an eyes exam by eye doctor come normal no pressure in eyes or the optic nerve can that mean it is very unlikely I have a brain tumour?

If an eyes exam by eye doctor come normal no pressure in eyes or the optic nerve can that mean  it is very unlikely I have a brain tumour?

Sort of: A normal eye exam does not rule out a brain tumor-- only brain imaging would do that. Of course, brain tumors are quite uncommon to begin with. You might see a neurologist if you have concerns about this. ...Read more

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Can sinusitis be a cause of swollen optic nerves in both eyes? Scheduled for an MRI but very nervous hoping its not a brain tumor. Thanks!

Highly unlikely: In rare cases, very severe sinusitis could affect the blood supply or blood drainage of the optic nerves. However, a person with this problem would likely have other symptoms as well, such as severe headache, other cranial nerve palsies or frank meningitis. ...Read more

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Is radiation for a squameous cell cancer tumor behind eye on optic nerve next to brain safe or could it cause necrosis of brain. Do I need proton?

Is radiation for a squameous cell cancer tumor behind eye on optic nerve
 next to brain safe or could it cause necrosis of brain. Do I need proton?

Palliative: Retrobulbar optic nerve involvement with metastatic tumor rare. Squamous malignancies are very few in that area. Chemo and RT given have mostly been palliative. Gamma knife therapy might be better than trying proton beam. With RT and chemo results in general have not been that encouraging. ...Read more

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Can a brain tumor cause problems in other parts of the body? (ex: stomach ulcers, sickness) if a brain tumor is present near the optical part of the brain, can it cause problems in the body such as sickness?

Can a brain tumor cause problems in other parts of the body? (ex: stomach ulcers, sickness) if a brain tumor is present near the optical part of the brain, can it cause problems in the body such as sickness?

Yes and no: The tumor itself does not cause other problems but the side effects of the medicines used in treatment, like steroids, can. Optical tract brain tumors do not usually cause symptoms other than visual disturbances unless they are very large in size. ...Read more

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Nerve (Definition)

The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more


Neoplasms (Definition)

"tumor" literally translates as "mass", so even a fresh bruise could be called a "tumor". Doctors use the term "neoplasm" (tranlates literally as new growth) to describe tumors that are abnormal growths of cells. These may be benign or malignant; "malignant" = cancer. In everyday usage, we use "tumor" ...Read more