What is brain metastasis?
Brain metastasis is when cancer that started in one area, such as the breast, spreads to the brain. The brain is one of the common sites of breast cancer metastasis. The others include the bones, lungs, and liver.
A 2017 studyTrusted Source looked at 4,932 people with metastatic breast cancer. Within this population, 8.8 percent had a brain metastasis.
For many people, metastases have already been detected in another of the common metastatic sites before they are found in the brain. However, Breastcancer.org says that about 17 percent of people with metastatic breast cancer have the brain as their only site of metastasis.
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What are the symptoms of brain metastasis from breast cancer?
The symptoms of brain metastasis can depend on which part of the brain is affected and may include:
headache
dizziness
nausea or vomiting
weakness or numbness in your limbs
vision changes, such as blurry vision or a sudden loss of vision
trouble speaking or slurred speech
difficulty staying balanced
problems with memory
changes in personality
seizures
Other more general symptoms that breast cancer has metastasized include:
fatigue
feeling unwell, or malaise
reduced appetite
unintentional weight loss
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