👉 Sar, also known as sarcoma, is a type of cancer that occurs in the connective tissue (bone or ligaments), which can spread and grow throughout the body. It is characterized by growths that resemble tumors but are not typically solid enough to be palpable or easily removed with a needle. Sarcomas often develop from abnormal cells that have been left over from previous cell divisions. Treatment options for sarcomas include surgery, radiation therapy, chemotherapy, and sometimes hormone therapy.