A sarcoma, a rare form of cancer, differs from the more common carcinomas in one major way — they occur in a different type of tissue known as connective tissue. Those are essentially cells that support or connect other types of tissue in the human body. Sarcoma is highly common in muscles, bones, fats, nerves, cartilage, and blood vessels in one’s arms and legs. They can, however, also happen in other areas in the body.
