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.
However, just because breast cancer has spread to the spine doesn't mean that it will spread to other areas. Doctors can treat the new tumors with radiation and new medications called bisphosphonates can block the progression of tumor cells in the bone and prevent the cancer from spreading to other organs.
But cancer most commonly spreads to the bones that are close to the center of the body. The spine is the most common place for a bone metastasis to form. Other common areas for bone metastases include the thigh bone, upper arm bone, ribs, hips, and skull.