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.
When prostate cancer spreads beyond the prostate to another organ, most frequently it spreads to the bone. Prostate cancer that spread to the bone is still prostate cancer when doctors look at it under the microscope. It is still treated with therapy for prostate cancer. A man whose prostate cancer spread to the bone does not have bone cancer.