A teacher's assistant is not typically required to hold a Bachelor's Degree, so the average pay is much lower than that of the teacher in charge. A teacher's assistant averages about $21,000 yearly with a slight range between $19,300 and $27,400.
When breast cancer spreads to the spine, it's known as bone metastasis. And unfortunately yes, breast cancer that has spread to the bones may spread to other areas such as the brain as well. This happens when cancer cells break away from the primary tumor and travel through the circulatory system. The most common areas for breast cancer to spread are the bones, lung, liver, and brain.
Spread to the Brain. Lung cancer is the most common cancer that spreads to the brain, and at least 40 percent of people with advanced lung cancer will develop brain metastases sometime during their disease. Both non-small cell lung cancer and small cell lung cancer can spread to the brain.