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How do Brain cancers grow over a period of time?

Cancer is a collection of many related diseases that are all characterized by one common feature. Some of these tumors do not spread beyond their point of origin. Others are capable of spreading large distances, often to other organs and tissues. This process is called “metastasis”, and tumors which can metastasize are called “cancers”.

What is Brain Tumor?
Brain tumors can either originate from within the brain (“primary brain tumors”). From cancer cells that have metastasized from other organs or tissues (“secondary brain tumors”). Primary brain tumors can be derived from the over twenty different cell types that make up the brain and its linings.

What are Primary Brain Tumor?
Primary tumors can be cancerous (malignant) or benign. These tumours start in the brain and do not spread. They rarely spread beyond the central nervous system. The tumor is still taking up space in the skull. They can cause serious complications and symptoms.

Primary Brain Tumor Types in Adults

– Gliomas
Tumors derived from astrocytes:
– Anaplastic astrocytoma (“grade III”)
– Glioblastoma multiforme
Tumors derived from oligodendrocytes:
– Oligodendrocytes
– Oligodendrogliomas
Tumors derived from ependymal cells:
– Ependymomas
– Anaplastic ependymomas
– Consequences of intracranial hypertension.
– Dysfunction Irritation.

What are Secondary Brain Tumor?
– These tumours are often called metastatic tumors.
– They are the result of cancer cells originating from another part of the body.
– They are spread to the brain.
– Secondary brain tumors often indicate advanced stages of disease.
– Both cancerous primary and secondary tumors are life threatening.
– These types of tumors are usually very aggressive.
– Secondary tumors means a cancerous neoplasm that has developed in another organ elsewhere in the body
– These cancer cells have leaked from that primary tumor and then entered the lymphatic system and blood vessels.
– They then circulate through the bloodstream.
– They are then deposited in the brain.
– These cells continue growing and dividing.
– They become another invasive neoplasm of the primary cancer’s tissue.
– Secondary tumors of the brain are very common in the terminal phases of patients.

Other Types of Growth
1. Low-grade vs. high-grade:
– Low-grade tumors are slow-growing.
– High-grade tumors are fast-growing and aggressive.
– High-grade tumors can invade nearby tissue or spread elsewhere in the body.
– They are also more likely to recur after treatment.
– They are generally associated with a worse outlook.

2. Localized vs. Invasive:
– Localized tumor is confined to one area.
– It is generally easier to remove.
– It’s in an accessible part of the brain.
– An invasive tumor has spread to surrounding areas.
– It is more difficult or impossible to remove completely.

Signals and Causes
Signal Number 1:
– First headache complaint from person over 50 years old.
Possible Cause:
– Brain tumor, arteriïtis temporalis.

Signal Number 2:
– First migraine attack in person over 40 years old.
Possible Cause:
– Brain tumor.

Signal Number 3:
– Headache in person under 6 years old.
Possible Cause:
– Brain tumor, hydrocephalus.

Signal Number 4:
– Person over 50 years old with pain at temples.
Possible Cause:
– Arteriïtis temporalis

Signal Number 5:
– Pregnancy with unknown headache.
Possible Cause:
– Pre-eclampsia.

Signal Number 6:
– Increased headaches after trauma.
Possible Cause:
– Sub/Epidural hematoma.

Signal Number 7:
– Severe headaches and very high blood pressure.
Possible Cause:
– Malignant hypertension.

Signal Number 8:
– Acute severe headache.
Possible Cause:
– Meningitis, CVA (Cerebrovascular accident or stroke), subarachnoidal hemorrhage.

Signal Number 9:
– Headache and fever (with reduced consciousness).
Possible Cause:
– Meningitis.

Signal Number 10:
– Stiffness of the neck/neurological dysfunction.
Possible Cause:
– Meningitis, brain tumor.

Signal Number 11:
– Headache with signs of elevated intracranial pressure.
Possible Cause:
– Brain tumor.

Signal Number 12:
– Focal neurological dysfunction.
Possible Cause:
– Brain tumor.

Signal Number 13:
– Early morning vomiting or vomiting unrelated to headache or other illness.
Possible Cause:
– Brain tumor.

Signal Number 14:
– Behavioral changes or rapid decline in school results.
Possible Cause:
– Brain tumor.

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