Advanced searches left 3/3
Search only database of 8 mil and more summaries

Brain Tumor Causes

Summarized by PlexPage
Last Updated: 02 July 2021

* If you want to update the article please login/register

General | Latest Info

Site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape close them as well. Tab will move on to the next part of the site rather than go through menu items. A Brain Tumor, know as an intracranial Tumor, is an abnormal mass of tissue in which cells grow and multiply uncontrollably, seemingly unchecked by mechanisms that control normal cells. More than 150 different brain tumors have been document, but two main groups of brain tumors are termed primary and metastatic. Primary brain tumors include tumors that originate from tissues of the brain or the brain's immediate surroundings. Primary tumors are categorized as glial or non - glial and benign or malignant. Metastatic Brain tumors include tumors that arise elsewhere in the body and migrate to the brain, usually through the bloodstream. Metastatic tumors are considered cancer and are malignant. Metastatic tumors to brain affect nearly one in four patients with cancer, or an estimated 150 000 people a year. Up to 40 percent of people with lung cancer will develop metastatic brain tumors. In the past, outcomes for patients diagnosed with these tumors were very poor, with typical survival rates of just several weeks. More sophisticated diagnostic tools, in addition to innovative surgical and radiation approaches, have helped survival rates expand up to years; and also allowed for improved quality of life for patients following diagnosis. Chordomas are benign, slow - growing tumors that are most prevalent in people ages 50 to 60. Their most common locations are the base of the skull and lower portion of the spine. Although these tumors are benign, they may invade adjacent bone and put pressure on nearby neural tissue. These are rare tumors, contributing to only 0. 2 percent of all primary brain tumors. Craniopharyngiomas are typically benign, but are difficult tumors to remove because of their location near critical structures deep in the brain. They usually arise from a portion of the pituitary gland, so nearly all patients will require some hormone replacement therapy. Gangliocytomas, gangliomas and anaplastic gangliogliomas are rare tumors that include neoplastic nerve cells that are relatively well - differentiate, occurring primarily in young adults. Glomus jugulare tumors are most frequently benign and typically are located just under the skull base, at top of the jugular vein. They are the most common form of glomus Tumor. However, glomus tumors, in general, contribute to only 0. 6 percent of neoplasms in the head and neck. Meningiomas are the most common benign intracranial tumors, comprising 10 to 15 percent of all brain neoplasms, although a very small percentage are malignant. These tumors originate from meninges, membrane - like structures that surround the brain and spinal cord. Pineocytomas are generally benign lesions that arise from pineal cells, occurring predominantly in adults. They are most often well - define, noninvasive, homogeneous and slow - growing.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Overview

A Brain tumor is the mass or growth of abnormal cells in your brain. Many different types of brain tumors exist. Some brain tumors are noncancerous, and some brain tumors are cancerous. Brain tumors can begin in your brain, or cancer can begin in other parts of your body and spread to your brain. How quickly a brain tumor grows can vary greatly. The growth rate as well as location of the brain tumor determine how it will affect the function of your nervous system. Brain tumor treatment options depend on the type of brain tumor you have, as well as its size and location.


What are the symptoms of brain cancer?

Brain tumor symptoms depend on the size and location of the tumor. They also vary from person to person. Symptoms are caused by damage the tumor does to parts of the brain, and increased pressure inside the skull. The most common symptoms of brain tumor include: headaches, nausea, weakness or loss of feeling. Symptoms can also include: Stumbling or Trouble walking Changes in vision or abnormal eye movements Changes in personality, memory, or speech Changes in alertness, from increased sleepiness to coma Uncontrollable convulsions of the body Weakness on one side of the body Trouble talking reduced field of vision Many of these may be cause by Other health problems. But it is important to see your healthcare provider if you have these symptoms. Only healthcare provider can tell if you have cancer.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Symptoms

Signs and symptoms of brain tumor vary greatly and depend on the brain tumor's size, location and rate of growth. General signs and symptoms caused by brain tumors may include: new onset or change in pattern of headaches Headaches that gradually become more frequent and more severe Unexplained Nausea or Vomiting Vision Problems, such as Blurred Vision, double Vision or loss of peripheral Vision, Gradual loss of sensation or movement in arm or leg Difficulty with Balance Speech difficulties Confusion in everyday matters Personality or behavior Changes Seizures, especially in someone who doesn't have history of Seizures Hearing Problems

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Causes

Cancer is named based on where in your body it begin. Brain cancer begins in your brain. This is sometimes referred to as primary brain cancer. You can also have cancer that has spread to your brain after starting somewhere else in your body. This is called metastatic brain cancer. Cancerous tumors in the brain are typically metastatic and not due to primary brain cancer. There are also types and grades of brain tumors. The Tumor type is based on where its located in your brain, and grade indicates how quickly the tumor grows. Grades range from 1 to 4. Grade 4 has fastest growth. There are more than 120 types of brain tumors. However, there is no standard for naming them according to type, and there are many subtypes. Different doctors might use different names for the same tumor.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Risk factors

Risk factor is anything that increases your chances of getting a disease such as brain or spinal cord tumor. Different types of cancer have different risk factors. Some risk factors, like smoking, can change. Others, like your age or family history, ca change. But having a risk factor, or even several, does not always mean that a person will get disease, and many people get brain or spinal cord tumors without having any known risk factors. Many different types of tumors can start in the brain or spinal cord, and while they might have some things in common, these different tumors might not all have the same risk factors. Most brain tumors are not linked with any known risk factors and have no obvious cause. But there are a few factors that can raise the risk of brain tumors.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Inherited gene changes

Their research has revealed 13 new genetic errors associated with increased risk of developing glioma - the most common form of Brain Cancer. One of the genetic changes increases risk by as much as a third and others by at least 15 per cent each. That means new information could be used to pick out some people at substantially increased risk of developing disease. Scientists at the Institute of Cancer Research, London, along with colleagues in Europe and US, lead international studies of more than 30 000 people with and without glioma. Their aim was to find sequence changes in DNA among these people passed on from their parents that increase risk of disease. Gliomas account for around 40 per cent of all brain tumours,. There is currently no reliable way of detecting disease early and current treatments are not particularly effective. New research reveals a wealth of new information about what causes people to gliomas, and could in future allow doctors to monitor those most at risk, diagnose disease earlier, and lead to discovery of badly needed new drugs. The study is published in the journal Nature Genetics, and was Fund by the National Institutes for Health in US, with additional support from UK charities - Cancer Research UK, Wellcome and DJ Fielding Medical Research Trust. Researchers carried out two new genome - wide studies and combined results with six previous studies in meta - analysis - involving in total 12 496 cases of glioma and 18 190 people without. The size of the study means it was able to detect 13 previously undiscovered genetic changes that increase the risk of glioma. These were found to affect a variety of cell functions, including nerve cell division, DNA repair, cell cycle control, protein production and inflammation. Scientists at the Institute of Cancer Research and their colleagues found that different sets of genes influence person's risk of developing two subtypes of glioma - glioblastoma and non - glioblastoma. For example, one of the DNA changes influencing activity of gene HEATR3 increases the risk of glioblastoma - a particularly aggressive type of glioma with average survival of only 10 - 15 months after diagnosis - by 18 per cent. But it has a much smaller effect on the risk of developing non - glioblastoma. As well as identifying new genetic changes, team generated even stronger evidence for roles of DNA errors in genes they previously identified as being associated with glioma and other cancers - including p53, EGFR, and genes TERT and RTEL1 which function to protect ends of chromosomes. The study doubled the total number of genetic changes associated with risk of glioma - taking it up to 26. Study co - leader Professor Richard Houlston, Professor of Molecular and Population Genetics at Institute of Cancer Research, London, say: it's been exciting to have been involved in such a gigantic study including cases of Brain Cancer from all over the world.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

What is a brain tumor?

A Brain tumor is abnormal growth or mass of cells in or around the brain. It is also called a central nervous system tumor. Brain tumors can be malignant or benign. Some tumors grow quickly; others are slow - growing. Only about one - third of brain tumors are cancerous. But whether they are cancerous or not, brain tumors can impair brain function if they grow large enough to press on surrounding nerves, blood vessels and tissue. Tumors that develop in the brain are called primary tumors. Tumors that spread to the brain after forming in different parts of the body are called secondary tumors or metastatic tumors. This article focuses on primary tumors. There are more than 100 types of primary brain and spinal cord tumors.


Overview

Brain tumors account for one in every 100 cancers diagnosed annually in the United States. Most malignant brain tumors and brain cancers have spread from other tumors in the body to the skull, including cancers of breast and lung, malignant melanoma and blood cell cancers. Some brain tumors start in cells that support nerve cells of the brain, where they can crowd out normal cells and spread to other locations in the body. Tumors can either destroy tissue or cause problems in other parts of the body because of pressure tumor put on the brain. Brain tumors can be grouped by type of cell involved or by location in the brain. Metastasized cells may grow in one or several areas of the brain. Almost half of all brain tumors are non - cancerous, slow growing and respond well to treatment.


Symptoms

Symptoms produced by brain tumors depend on their location, size, rate of growth and stage. Some nonmalignant brain tumors that grow slowly can become quite large before producing symptoms because there often is no swelling of brain tissues. However, because of their size or location, they cannot be easily remove, they can be as life threatening as malignant brain tumors. Persons who have symptoms that do not go away should see their doctor immediately. In general, brain cancer symptoms include: abnormal pulse and breathing rates can also occur. Deep, dull headaches that recur often and persist without relief for long periods of time. Difficulty walking or speaking Dizziness Eyesight problems, including double vision, Seizures Vomiting at late stages of disorder, dramatic changes in blood pressure may occur. Seizures are common symptom of benign brain tumors and slow - growing cancers. Tumors can cause part of the body to weaken or feel paralyzed. Hearing, sight and sense of smell can be affect. Persons who display personality changes and are prone to confusion and unable to think clearly require immediate medical attention. There are many different types of brain tumors, some of which can have several names. Even neuropathologists, who diagnose these brain tumors, are sometimes inconsistent with what they call them. Some of the most common types are: risk factors include exposure for long periods to ionizing radiation or to chemicals, such as vinyl chlorides, aromatic hydrocarbons, triazenes and N - nitroso compound. Generally, exposure occurs at place of work. Genetically inherited diseases, such as tuberous sclerosis and von Hippel - Lindau disease, may make people susceptible to brain tumors. Three out of five people who suffer from brain tumors are male. Brain tumors are most common in early or middle adult life, but they can appear at any age.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Treatment

When possible, brain tumors are removed through surgery. While many can be removed with little or no damage to the brain, others are located where surgical removal is difficult or impossible without destroying critical parts of the brain. Brain damage caused by surgery can lead to partial paralysis, changes in sensation, weakness and poor thinking. Even so, removing tumors is necessary when it threatens important brain structures. Even when it can't cure the malignancy, surgery can help reduce the size of the tumor, ease symptoms and help determine the type of tumor and best treatment. Radiation Chemotherapy Stem cell transplantation

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

CT Scan vs. MRI

CT scan is a procedure that uses X - rays to scan and take images of cross - sections of parts of the body. A CT scan can help diagnose broken bones, tumors or lesions in areas of the body, blood clots in the brain, legs, and lung,s and lung infections or diseases like pneumonia or emphysema. Mri is a procedure that uses strong magnetic fields and radiofrequency energy to make images of parts of the body, particularly, organs and soft tissues like tendons and cartilage. Both CT and MRI are painless,. However, MRI can be more bothersome for some individuals who are claustrophobic, or suffer from anxiety or panic disorders due to enclosed space and noise machines make. Mri costs more than CT, while CT is a quicker and more comfortable test for patient.Sss


Imaging tests

Mri scans are very good for looking at the brain and spinal cord and are considered the best way to look for tumors in these areas. The images they provide are usually more detailed than those from CT scans. But they do not pick up bones of skull as well as CT scans and therefore may not show effects of tumors on the skull. Mri scans use radio waves and strong magnets to make pictures. Contrast material called gadolinium may be injected into the vein before scanning to help see details better. Special types of MRI can be useful in some situations: magnetic resonance angiography and magnetic resonance venography: these special types of MRI may be used to look at blood vessels in the brain. This can be very useful before surgery to help surgeon plan the operation. Magnetic resonance spectroscopy: this test can be done as part of MRI. It measures biochemical changes in area of the brain. By comparing results of tumor to that of normal brain tissue, it can sometimes help determine the type of tumor, although biopsy of the tumor is often still needed to get an accurate diagnosis. Mrs can also be used after treatment to help determine if an area that still looks abnormal on another test is remaining tumor or if it is more likely to be scar tissue. Magnetic resonance perfusion: For this test, also know as perfusion MRI, contrast dye is injected quickly into the vein. A special type of MR image is then obtained to look at the amount of blood going through different parts of the brain and tumor. Tumors often have bigger blood supply than normal areas of the brain. Faster growing tumor may need more blood. Perfusion MRI can give doctors an idea of the best place to take a biopsy. It can also be used after treatment to help determine if an area that still looks abnormal is remaining tumor or if it is more likely to be scar tissue. Functional MRI: this test looks for tiny blood flow changes in the active part of the brain. It can be used to determine what part of the brain handles functions such as speech, think, sensation, or movement. Doctors can use this to help determine which parts of the brain to avoid when planning surgery or radiation therapy. This test is similar to standard MRI, except that you will be asked to do specific tasks while scans are being done.


Brain or spinal cord tumor biopsy

A Brain tumor is a collection of abnormal cells that grow in or around the brain. It poses a risk to the healthy brain by either invading or destroying normal brain tissue or by compressing and displacing the brain. Since the brain is enclose inside skull which has a fixed amount of space, growing brain tumor can cause significant damage to the brain. Brain Tumors can be malignant or benign. They may be primary or metastatic. Some of these tumors can spread and involve Spinal Cord extension of the brain. Your doctor may order head or spine MRI, Brain fMRI, head CT, head PET, cerebral angiography, myelography, Biopsy or lumbar puncture to help diagnose and evaluate your condition. Other imaging tests may be performed if your doctor suspects your tumor has spread to other parts of your body. Treatment will depend on the size and type of tumor, its growth rate and your general health. Options include surgery, radiation therapy, chemotherapy, target biological therapy or combination thereof.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

When to see a doctor

There are many types of brain tumors. Some are cancerous and some are noncancerous. Some malignant tumors start in the brain. Sometimes, cancer spreads from another part of the body into the brain, resulting in secondary brain tumor. There are lot of potential symptoms of brain tumors, but one person is unlikely to have them all. Also, symptoms vary depending on where the tumor is growing in the brain and how large it is. Continue reading as we look at some of the most common symptoms of brain tumors, plus some symptoms that may provide clues as to the location of the tumor.


General signs and symptoms

Tumors in the brain can disrupt brain function, affecting your personality and behavior. They can also cause unexplained mood swings. For example: you were easy to get along with, but now youre more easily irritate. You used to be a go - getter, but youve become passive. Youre relaxed and happy one minute and, next, you start an argument for no apparent reason. Certain parts of the cerebrum frontal lobe temporal lobe can occur early on, but you can also get these symptoms from chemotherapy and other cancer treatments. Personality changes and mood swings can also be due to mental disorders, substance abuse, and other disorders involving the brain.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Headaches

According to the World Health Organization, 50 - 75% of adults aged 18 - 65 YEARS worldwide report having at least one headache in 2015. Who also notes that up to 4% of the world's adult population live with a chronic headache disorder. In comparison with these huge numbers, doctors only diagnosed about 330 000 people with Cancer of the Brain or spinal cord in 2016. Most headaches do not indicate brain tumor. Experiencing headache from time to time is rarely a medical emergency. However, brain tumors can lead to severe and persistent headaches. In this article, we discuss the difference between regular headaches and those due to brain tumors. We also cover other signs of brain tumors and when to see a doctor.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

logo

Plex.page is an Online Knowledge, where all the summaries are written by a machine. We aim to collect all the knowledge the World Wide Web has to offer.

Partners:
Nvidia inception logo

© All rights reserved
2021 made by Algoritmi Vision Inc.

If you believe that any of the summaries on our website lead to misinformation, don't hesitate to contact us. We will immediately review it and remove the summaries if necessary.

If your domain is listed as one of the sources on any summary, you can consider participating in the "Online Knowledge" program, if you want to proceed, please follow these instructions to apply.
However, if you still want us to remove all links leading to your domain from Plex.page and never use your website as a source, please follow these instructions.