Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Birt-Hogg-Dube syndrome ?
    ### Response:
    Birt-Hogg-Dube syndrome (BHDS) is a rare, complex, genetic disorder with three main clinical findings: non-cancerous (benign) skin tumors; lung cysts and/or history of pneumothorax (collapsed lung); and various types of renal tumors. Fibrofolliculomas are a type of benign skin tumor specific to BHDS.
    