Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) 8p11 myeloproliferative syndrome ?
    ### Response:
    8p11 myeloproliferative syndrome is a blood cancer that involves different types of blood cells. Blood cells are divided into several groups (lineages) based on the type of early cell from which they are descended. Two of these lineages are myeloid cells and lymphoid cells.
    