We do not all have cancer cells in our bodies as cancer cells do not exist in the body of everyone.
The human body however is constantly in a cycle where new cells grow, divide and die in a controlled manner which is a process called apoptosis.
The cells with damaged DNA either fix themselves or die off naturally.
The hallmark 3 of cancer is unlimited replicative potential.
In contrast to the normal cells that are able to pass through only a limited number of cell division cycles, tumor cells show nearly unlimited replication.
The deadliest cancer is lung and bronchus cancer followed by brain cancer or glioblastoma.
Pancreatic cancer is also the 3rd deadliest cancer which causes around 50,550 deaths.
Brain cancer is one of the worst cancers and is also one of the hardest cancers to cure which is the 10th leading cause of death for women and men.
Glioblastoma is the most aggressive brain cancer and neurofibroma is the least aggressive brain cancer.
The fastest spreading brain cancer is glioblastoma which is also known as grade IV astrocytoma which is the fastest growing and most aggressive brain cancer.
Glioblastoma brain cancer invades the nearby tissue although it does not generally spread to distant organs.
Some brain cancers are curable if they can be completely removed by most brain cancers are not curable.
The outcome of malignant brain cancer tumors depend on how slowly or how quickly the brain cancer tumor develops and how well it responds to treatment.
Brain cancer is almost always 100% fatal as it's very hard to cure.
However there have been a few people that have beat brain cancer and survived but most people with brain cancer die within 5 years to 10 years in most cases.
The longest anyone has survived glioblastoma brain cancer was more than 20 years.
The deadliest type of brain cancer is Glioblastoma which is also known as glioblastoma multiforme (GBM).
Glioblastoma is the most common and most aggressive form of brain cancer and has a very poor prognosis in survival.
The symptoms of Glioblastoma brain cancer include speech difficulty, memory loss, weakness on one side of the body, changes in your personality, drowsiness, vomiting and nausea, seizures and headaches.
Your life expectancy with brain cancer is between 5 years to 10 years depending on how far progressed the brain cancer is at diagnoses.
In some cases people may die within 1 to 2 years with brain cancer and others with brain cancer survive 5 to 10 years.
Brain cancer is a terminal cancer because even with treatment it is very hard to cure.
Some people have survived brain cancer with treatment but it's rare and can even come back even after having surgery.
The brain tumor that has the worst prognosis is Glioblastoma multiforme which is the most aggressive and most common primary intracranial tumor.
Even with modern therapies and treatments it is still fatal with very poor prognosis with a median survival of 14 months.
The signs that cancer has spread to the brain are.
Headache, sometimes with vomiting or nausea.
Mental changes, such as increasing memory problems.
Seizures.
Weakness or numbness on one side of the body.
Numbness.
Balance and coordination issues.
Headaches that are sometimes accompanied by nausea or vomiting.
Dizziness.
Cognitive impairment, including confusion, memory loss and personality changes.
Once cancer spreads to the brain you usually have up to 6 months to live without treatment.
With treatment you may live a few years or even longer once cancer spreads to the brain.
Once cancer spreads to the brain the cancer puts pressure on the brain and the cancer changes the function of the surrounding brain tissue which then causes symptoms such as headache, personality changes, memory loss and seizures.
The symptoms of end stage brain cancer include.
Frequent headaches.
Agitation and delirium.
Agonal breathing (gasping breaths that occur when a person is struggling to breathe)
Prolonged confusion.
Hallucinations.
Loss of appetite.
Vision loss.
Involuntary movements.
The final stages of metastatic brain cancer are drowsiness, headaches, cognitive and personality changes, poor communication, seizures, delirium (confusion and difficulty thinking), focal neurological symptoms, and dysphagia.
Metastatic brain cancer (also called secondary brain tumors) is caused by cancer cells spreading (metastasizing) to the brain from a different part of the body.
The most common types of cancer that can spread to the brain are cancers of the lung, breast, skin (melanoma), colon, kidney and thyroid gland.