Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Childhood Soft Tissue Sarcoma ?
    ### Response:
    Key Points
							                    - Childhood soft tissue sarcoma is a disease in which malignant (cancer) cells form in soft tissues of the body.    - Soft tissue sarcoma occurs in children and adults.    - Having certain diseases and inherited disorders can increase the risk of childhood soft tissue sarcoma.
    