Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Cowden syndrome ?
    ### Response:
    Cowden syndrome is an inherited condition that is characterized primarily by multiple, noncancerous growths (called hamartomas) on various parts of the body. It is considered part of the PTEN Hamartoma Tumor Syndrome spectrum which also includes Bannayan-Riley-Ruvalcaba syndrome and Proteus syndrome.
    