Doctor insights on:
Brain Tumour Causing Damage To Optic Nerve
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
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 moreSee 1 more doctor answer
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
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?
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 moreSee 3 more doctor answers
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
If blood work, neurology report were normal, and doctor did an examination, he suspects no brain tumor, no CT scan, am I most likey safe? Optic nerve looks good, just have gallstones that cause nausea
It's possible: Any disease in close proximity to the frontal skull base (i.e. "eye sockets") can irritate the linings of the adjacent membranes through inflammation, distortion, compression or infiltration of the structures. Tumors are not the only cause. If you're worried, get it checked out. Start with a neurologist, ent, or ophthalmologist depending upon any associated symptoms. ...Read moreSee 1 more doctor answer
Many options: Visual circuits are widely placed in the brain. Tumors can disrupt many of these functions including basic vision, parts of the field, motility and coordination. The list of what kind includes all known spontaneous tumors originating in the brain and also metastatic tumors lodging in the brain. Neuro-ophthalmologists are skilled at relating a series of symptoms to the location of the tumor. ...Read more
"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
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