Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Cowden syndrome ?
    ### Response:
    Cowden syndrome is a disorder characterized by multiple noncancerous, tumor-like growths called hamartomas and an increased risk of developing certain cancers.  Almost everyone with Cowden syndrome develops hamartomas. These growths are most commonly found on the skin and mucous membranes (such as the lining of the mouth and nose), but they can also occur in the intestine and other parts of the body.
    