CNS Tumors Flashcards
_____% of tumors occur in the brain, while _____% involve the spinal cord.
80%
20%
What are metastatic brain tumors?
The most common intracranial tumor in adults, accounting for more than 50% of brain tumors.
What percentage of adults with systemic malignancies develop brain metastases?
Brain mets occur in 10-30% of adults and 6-10% of children.
What is the likelihood of patients with another type of cancer developing metastatic brain lesions?
About 1/3 of patients with another type of cancer will develop one or more metastatic brain lesions.
At what age does the risk of metastatic brain tumors increase?
The risk increases after age 45 and is highest in those over 65.
What are the most common primary sites responsible for brain metastases?
The most common primary sites are lung and breast cancer.
Where do most metastatic lesions occur in the brain?
Most metastatic lesions occur in the cerebral hemispheres.
What is a common treatment for metastatic brain tumors?
Whole brain palliative radiation therapy.
What medication is used to reduce intracranial pressure (ICP) in metastatic brain tumor patients?
Corticosteroids are used to reduce ICP.
What is the most common location for metastatic spine tumors?
The most common location is the thoracic spine (T-Spine).
What is the first symptom of metastatic spinal tumors?
The first symptom is usually back pain, but not all metastatic spinal tumors are symptomatic.
What is a common treatment plan for metastatic spinal tumors?
Most treatment plans involve radiation therapy.
What is a typical radiation dose for metastatic spinal tumors?
30-37.5 Gy over 10-15 fractions (2-3 weeks).
