Sarcome des tissus mous

Overview 

• Soft tissue sarcoma is a rare type of cancer that develops in the soft tissues of the body, including muscles, fat, blood vessels, nerves, tendons, and joint linings. These tumors can occur anywhere in the body, but they are most commonly found in the arms, legs, and abdomen.
• In many cases, soft tissue sarcoma presents as a painless lump, which can delay early detection. Some types may grow aggressively and spread to other organs such as the lungs or liver.
• Treatment outcomes depend on early diagnosis, tumor type, size, and location.

Types of Soft Tissue Sarcoma         

• Liposarcoma: develops in fat cells
• Leiomyosarcoma: arises from smooth muscle (uterus, digestive tract)
• Synovial Sarcoma: forms near joints (knees, ankles)
• Fibrosarcoma: originates in fibrous tissue
• Angiosarcoma: begins in blood or lymph vessels
• Rhabdomyosarcoma: common in children, affects skeletal muscle
• Myxofibrosarcoma: typically seen in older adults
• Spindle Cell Sarcoma: rare and aggressive
• Malignant Peripheral Nerve Sheath Tumor (MPNST): affects nerve lining
• Dermatofibrosarcoma Protuberans (DFSP): slow-growing tumor of skin tissue

Symptoms of Soft Tissue Sarcoma         

• Painless lump or swelling in the arm, leg, or trunk
• Lump that gradually increases in size
• Pain if the tumor presses on nerves or muscles
• Restricted movement in the affected area
• Fatigue or unexplained weight loss in advanced stages
• Skin changes such as discoloration or visible veins
• Tingling, numbness, or weakness due to nerve involvement

Causes of Soft Tissue Sarcoma         

• Genetic mutations affecting cell growth
• Inherited conditions such as Li-Fraumeni syndrome or neurofibromatosis
• Previous exposure to radiation therapy
• Contact with certain chemicals (e.g., herbicides, dioxins)
• In many cases, the exact cause remains unknown

Complications in Soft Tissue Sarcoma         

• Spread (metastasis) to lungs, liver, or other organs
• Recurrence after treatment
• Functional impairment or reduced mobility
• Nerve damage following surgery
• Risk of infection or delayed healing
• Psychological and emotional challenges

Risk Factors of Soft Tissue Sarcoma         

• Increasing age (more common after 50 years)
• History of radiation therapy
• Family history of sarcoma or genetic disorders
• Occupational exposure to harmful chemicals
• Weakened immune system

Preventions of Soft Tissue Sarcoma         

There is no definite way to prevent soft tissue sarcoma. However, the following may help reduce risks:

• Monitoring any new or changing lumps
• Limiting unnecessary radiation exposure
• Seeking genetic counseling if there is a family history
• Maintaining overall health and immune function