Doctor insights on:
Brain Anyersum Take To Develop
Variable: There are silent areas of the brain. Tumors may develop in these areas and not show symptoms for years. Important regions of the brain will show symptoms immediately. The important issue is to identify symptoms as early as possible and then use the appropriate imaging method to look for a tumor. Index of suspicion must come first, then the imaging will be of more value. ...Read more
Could you tell me if there's a blood brain barrier, how do people get metastatic/secondary brain tumors?
Imperfect barrier.: The blood brain barrier separates circulating blood from the brain proper. The barrier consists of tight junctions in cells lining the blood vessels in the brain as well as a thick basement membrane and processes from astrocytes (structural/supporting brain cells). This barrier helps to limit pathogens (bacteria) and cancers from entering the brain; however, no physiologic system is "perfect". ...Read more
Relatively safe: Intracranial hypertension, or pseudotumor cerebri, is a condition that often causes headaches and blurred vision. It is normally diagnosed by opening pressure on spinal tap and treated with medication. I have never heard that it can cause death. It's major disabling symptoms are headache and sometimes altered vision. ...Read more
Giving a CT scan to look at the brain, but how long do the symptoms of brain cancer/tumor last, and how long does it take to diagnose?
Is it possible to damage DNA from single chest CT scan which can lead to cancer later in life? If yes then how long it will take to develop?
Stop worrying: Your dna is being damaged constantly as you go about your business. Your own body, especially your potassium atoms, are radioactive, and you are being bombarded constantly by cosmic rays. Scans are only one of thousands of sources of radiation. You can't avoid it, the exposure you get in a scan is hopefully worth the benefit, and you need keep it in perspective and get on with living your life. ...Read more
epidural hemorrhage how long after a blow to the temple would it take to show up? Amd what are thes symptoms
I have a hyperintensity of 3mm due to ischaemia in subcortical brain can these hyperintensities heal themselves and how can you prevent future ones?
? Ischaemia: I would question whether this hyper intensity truly reflect ischemia. If this was observed on what is known as a diffusion weighted sequence, then it likely reflects ischemia or inflammation. If it was seen on a FLAIR or T2 sequence, and is solitary, this is likely a normal finding that is of no clinical significance. ...Read more
Can someone explain the importance and reason for needing to take aspirin when you have a brain aneurysm?
Correct information?: This concerns me a lot. If you possess an un-ruptured brain aneurysm, why are you taking aspirin? As if it were to rupture, you would have a tougher time stopping the bleeding, which would increase your mortality risk. I highly recommend a second opinion to get this clarified, as you do not list any rationale for use of aspirin. ...Read more
It depends: Brain damage does not occur unless there is a significant loss of oxygen and/or other vital nutrients to the brain. Cessation of breathing (apnea) per se does not cause brain damage unless the oxygen level in the blood falls to dangerously low levels for a prolonged period of time. Even if apneic, oxygen levels can be sustained in the blood through other means, for many minutes, or even hours. ...Read moreSee 1 more doctor answer
Please tell me what can happen to the brain if one has a rather large intramedullary spinal cord tumor?
Should be separate: The brain and the intramedullary spinal cord tumor should be separate entities, unless the tumor is very high in the cervical spine at the base of the skull. In this case, the tumor can invade the brainstem and lead to brainstem symptoms like apnea, trouble swallowing, double vision, coma and death. ...Read more
Can overdrainage/suction of CSF through a lumbar drain cause brain damage, paralysis/death? How much fluid would it take for this damage to occur?
Yes but this is : Variable based on age/size of person as well as underlying medical issues/condition as well as the rate of drainage as CSF is constantly restored. ...Read more
Would you advise cod liver oil for better recovery from hydrocephalus and chronic lacunar infarcts in right thalamus and left basal ganglia after TB meningitis..Will it help or produce side effects?
Not advise: Major issue is awful taste and no data to support efficacy. Better off without it.. ...Read more
Not that I am: aware of. Aneurysms are usually congenital defects you are born with ...Read more
How long does it take for compartment syndrome to develop after muscle contusion? What are the symptoms?
Short: It usually occurs within hours to days after the injury.. ...Read more
It shouldn't: Contrast enhanced ct scans are not a risk for brain cancer. In fact more tumors have been cured by finding them early with ct scans and mris than have ever been caused. There was a scare with ct angiograms at one time because a few machines gave large doses of radiation. For the most part, this is no longer the case. ...Read moreSee 2 more doctor answers
2 yrs after college: Most physicians assistant programs are 2 year degrees after completing a bachelors degree. However, to get into a pa program they will want you to have experience in a medical setting so this can add time to your path. ...Read more
Unlikely.: Always possible, but very low probability. Currently, MRI is the most sensitive imaging test of the head (particularly in the brain) in routine clinical practice. PET scans are another imaging modality that an oncologist can decide to perform if there is a high index of suspicion even after the negative MRI in some individualized cases. ...Read more
How long would untreated pneumonia take to turn into acute respiratory distress syndrome, and then on to death?
How long can cerebral edema or brain swelling can take to cure. My friend is making very slow progress, she 50% conscious in a month?
Compare with bruise: The acute lesion swells over 24-36 hrs and resolves slowly over 2-3 weeks. However, resolution implies healing, and with encephalitis the process may not totally be stable, with ongoing inflammation mixed with areas of healing. May be looking at several months to resolve edema and perhaps up to 18 months for maximal improvement. ...Read more
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