Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Prune belly syndrome ?
    ### Response:
    Prune belly syndrome, also called Eagle-Barrett syndrome, is a condition characterized by three main features: (1) a lack of abdominal muscles, causing the skin on the belly area to wrinkle and appear "prune-like";  (2) undescended testicles in males; and (3) urinary tract problems.
    