Sarcoma is a rare form of cancer that can affect the bone, cartilage, fat, muscle, blood vessels and other connective or supportive tissue. Sarcoma can affect adults and children and arise in different locations in the body.

Types of Sarcoma

• Soft tissue sarcomas may occur in fat, muscle, nerves, tendons, and blood and lymph vessels. These may include lieomyosarcoma, liposarcoma, angiosarcoma, and desmoid tumors, among others. They often do not cause symptoms in the early stages. The first noticeable symptom may be a painless lump.
• Gastrointestinal stromal tumor (GIST) is a sarcoma that begins in the digestive tract or stomach. Patients with GIST may not experience symptoms.
• With bone cancer sarcoma, the most common conditions are Ewing’s, osteosarcoma and chondrosarcoma. Depending on where the tumor is found, a lump or painful swelling may be present.
• Uterine sarcomas refer to cancer cells that develop in the muscles of the uterine wall or the supporting connective tissues. Woman may notice abnormal vaginal bleeding or spotting, as well as an unusual vaginal discharge. Pain, an unusual feeling of fullness in the pelvic area, and frequent urination may occur. 
• Alveolar soft part sarcoma is a rare sarcoma in which tumors can affect more than one type of body tissue.