Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Sotos Syndrome ?
    ### Response:
    Sotos syndrome (cerebral gigantism) is a rare genetic disorder caused by mutation in the NSD1 gene on chromosome 5. It is characterized by excessive physical growth during the first few years of life. Children with Sotos syndrome tend to be large at birth and are often taller, heavier, and have larger heads (macrocrania) than is normal for their age.
    