The National Cancer Institute has planned a Sarcoma Progress Review Group to identify research priorities and resource needs for progress against the sarcomas.

There are many different sarcomas. The most common forms include:

1. Soft Tissue Sarcomas originate in connective tissues, fat, blood vessels, nerves, joints, muscles, cartilage, and deep dermal tissue. They occur more often in adults.



2. Osteosarcoma is the most common type of bone cancer. In children, it occurs most commonly in the bones around the knee. Although osteosarcoma most often occurs in adolescents and young adults, about 10% of cases develop in people in their 60s and 70s.



3. Kaposi's Sarcoma (KS) usually develops in the skin or in the lining of the mouth, nose, or eye. In the last 20 years, the vast majority of KS cases have developed in association with human immunodeficiency virus (HIV) infection and Acquired Immunodeficiency Syndrome (AIDS).