Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Rhabdoid tumor ?
    ### Response:
    Rhabdoid tumor (RT) is an aggressive pediatric soft tissue sarcoma that arises in the kidney, the liver, the peripheral nerves and all miscellaneous soft-parts throughout the body. RT involving the central nervous system (CNS) is called atypical teratoid rhabdoid tumor.
    