Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Desmoplastic small round cell tumor ?
    ### Response:
    Desmoplastic small round cell tumors (DSRCT), a rare malignant cancer, is a soft tissue sarcoma that usually affects young boys and men and is found most often in the abdomen. Its name means that it is formed by small, round cancer cells surrounded by scarlike tissue.
    