Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) persistent Mllerian duct syndrome ?
    ### Response:
    Persistent Mllerian duct syndrome is a disorder of sexual development that affects males. Males with this disorder have normal male reproductive organs, though they also have a uterus and fallopian tubes, which are female reproductive organs. The uterus and fallopian tubes are derived from a structure called the Mllerian duct during development of the fetus.
    