### condition | illness | tumor:

Brain tumor
* Some brain tumors are easier to remove and treat than others
  - can spread to other parts of the nervous system such as the spinal cord
* Some brain tumors cause memory
  - neurological symptoms
  - destroy the brain tissue in which they grow
* are a cancer of both the body and the soul
  - rare cause of headaches
* are abnormal masses in or on the brain
  - of cells that arise in the brain
  - complex and prone to misclassification and over treatment
  - difficult to treat because of limited agent penetration into the tumor
  - illnesses
  - more common than tumors of the spinal cord
  - now the leading cause of death from cancer in children
  - one of the fastest growing cancers today
  - resistant to currently available treatment and are associated with high mortality
* are the leading cause of death amongst the childhood cancers
  - from childhood cancer
* are the most common solid tumor of childhood
  - deadly of all the childhood cancers
* are the second most common cause of cancer death in children and young adults
  - childhood malignancy
  - malignancy of childhood after leukemias and lymphomas
* are the second most common type of cancer seen in children
  - of cancer that occurs in children behind leukemia
  - tumors that grow in the brain
  - usually either gliomas or blastomas
* can also be benign or malignant
  - benign, meaning they are less aggressive
* can be a cause of vestibular disease if the signs fit with a central lesion
  - extremely serious, even when noncancerous
* can be malignant of benign, and in either case can be life threatening
  - or benign and either case can be life-threatening
  - either be benign or malignant
  - occur at any age
  - originate from many different types of brain cells
* cause many diverse symptoms so detection can be quite tricky.
* die slowly.
* fall into the same category.
* occur in all age groups
  - when a cell proliferates in an abnormal manner
* produce a variety of symptoms ranging from headache to stroke.
* represent one of the most devastating malignancies affecting both children and adults
  - the second most common pediatric tumor
* strike children and adults in the prime of life.
* take many forms and affect people of all ages and backgrounds.

### condition | illness | tumor | brain tumor:

Glioblastoma
* are brain tumors.
* are the most comman primary brain tumor
  - malignant brain tumours in adults
* can be very difficult to treat.

Glioma
* arise from the structural cells that hold the brain together.
* begin from glial cells, which are the supportive tissue of the brain.
* vary greatly in their growth rate and therefore in their degree of malignancy.

### condition | illness | tumor | brain tumor | glioma:

Optic glioma
* are growths along the optic nerve that goes from the eye to the brain.
* is classified as an astrocytoma.

Brain tumour
* are a complete enigma at the moment
  - comparatively easy to deal with if they occur
  - the most common cause of solid cancer in children
* are the second leading cause of cancer deaths in children
  - most common cancer in children
* can be benign or malignant
  - develop in the different types of cells found in the brain
  - obstruct the CSF flow, either by their bulk or by causing brain swelling

Bulky tumor
* Some bulky tumors turn out to be quite superficial, and some small tumors have iceberg extensions.
* can encroach or touch the cornea.

Cancerous tumor
* are one of the least common types removed in adolescents.
* can grow quickly and spread to other organs.
* cause death.
* grow and feed themselves by angiogenesis
  - in the region where they start and then invade the surrounding tissue
* invade and damage surrounding healthy tissue.
* invade and destroy surrounding tissue and can spread to other areas of the body
* require a network of blood vessels to survive and grow.
* tend to grow fast and feel hard.