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.
Bone Metastasis: Cancers that Commonly Spread to Bone. About three out of four cases of bone metastasis result from tumors in the breast, prostate, lung, or kidney. Almost 70% of people with advanced breast or prostate cancer have bone metastasis; bone is commonly the first area of metastasis for these cancers. How and Why Cancers Metastasize to Bones.