Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Filippi syndrome ?
    ### Response:
    Filippi syndrome is an extremely rare genetic condition characterized by a small head (microcephaly), webbing of the fingers and toes (syndactyly), intellectual disability, growth delay, and distinctive facial features (high and broad nasal bridge, thin nostrils, small chin or micrognathia, and a high frontal hairline).
    