Comprehensive Overview of Sarcoma
Sarcoma is a type of cancer that begins in connective tissues of the body. Connective tissues include bone, muscle, fat, blood vessels, cartilage, and other supporting tissues.
Sarcoma is less common than many other cancers, but it can develop in many different parts of the body.
This guide explains what sarcoma is, sarcoma symptoms, causes, and treatment.
This information is educational only and not medical advice.
What Is Sarcoma
Sarcoma begins when connective tissue cells develop DNA changes that allow them to grow uncontrollably and avoid normal cell death.
These abnormal cells multiply and form tumors in connective tissues.
Sarcoma can develop in:
- bones
- muscles
- fat
- tendons
- blood vessels
- nerves
Sarcoma tumors may grow deep inside the body or close to the skin.
Sarcoma can spread through:
- bloodstream
- lymphatic system
Common areas of spread include:
- lungs
- bones
- liver
Sarcoma is a classification of cancer, not a single disease.
There are many different types of sarcoma.
Types of Sarcoma
Sarcomas are usually divided into two main groups.
Soft Tissue Sarcoma
Soft tissue sarcomas develop in soft tissues.
Examples include:
- muscle sarcoma
- fat sarcoma
- blood vessel sarcoma
- nerve sarcoma
Soft tissue sarcomas often develop in:
- arms
- legs
- abdomen
Bone Sarcoma
Bone sarcomas develop in bone tissue.
Examples include:
- osteosarcoma
- chondrosarcoma
- Ewing sarcoma
Bone sarcomas often affect:
- legs
- arms
- pelvis
Sarcoma Symptoms
Sarcoma symptoms depend on where the tumor develops.
Early sarcoma may cause few symptoms.
Common sarcoma symptoms include:
- lumps or masses
- swelling
- pain
- fatigue
Persistent symptoms should be medically evaluated.
Soft Tissue Sarcoma Symptoms
Soft tissue sarcoma symptoms may include:
- painless lump
- slowly growing mass
- swelling
- pressure on nearby tissues
Lumps may become painful as tumors grow.
Bone Sarcoma Symptoms
Bone sarcoma symptoms may include:
- bone pain
- swelling near joints
- fractures
- tenderness
Bone pain may worsen at night.
Symptoms of Advanced Sarcoma
Advanced sarcoma may spread to other organs.
Lung Spread
Symptoms include:
- cough
- shortness of breath
- chest pain
Bone Spread
Symptoms include:
- bone pain
- fractures
Systemic Symptoms
Symptoms include:
- fatigue
- weight loss
- weakness
How Sarcoma Develops
Normal connective tissue cells:
- grow in a controlled way
- repair damage
- die when needed
Sarcoma cells:
- grow continuously
- avoid cell death
- accumulate mutations
- form tumors
Tumors may invade nearby tissues.
Cancer cells may spread through blood circulation.
Causes and Risk Factors
Sarcoma develops from genetic changes and environmental factors.
Risk factors include:
Radiation Exposure
Previous radiation therapy increases risk.
Genetic Conditions
Some inherited conditions increase risk.
Chemical Exposure
Certain industrial chemicals increase risk.
Age
Some sarcomas occur in children while others occur in adults.
How Sarcoma Is Diagnosed
Diagnosis may include:
- physical examination
- imaging scans
- biopsy
A biopsy confirms sarcoma.
Sarcoma Treatment
Treatment depends on tumor type and stage.
Surgery
Surgery removes sarcoma tumors.
Radiation Therapy
Radiation destroys cancer cells.
Chemotherapy
Chemotherapy treats certain sarcomas.
Targeted Therapy
Targets specific tumor mutations.
Immunotherapy
Used in some sarcoma types.
Sarcoma Stages
Stage 1
Cancer confined to original tissue.
Stage 2
Cancer has grown locally.
Stage 3
Cancer has spread to nearby lymph nodes.
Stage 4
Cancer has spread to distant organs.
When Symptoms Need Medical Evaluation
Medical evaluation is important if symptoms include:
- lumps that continue growing
- unexplained swelling
- persistent pain
- bone pain
- unexplained weight loss
Early detection improves outcomes.
Medical References
National Cancer Institute
https://www.cancer.gov
American Cancer Society
https://www.cancer.org
Mayo Clinic
https://www.mayoclinic.org
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