Birt-Hogg-Dube Syndrome

**Semantic type:** Disease or Syndrome

**Definition:** A rare genetic syndrome with an autosomal dominant pattern of inheritance. It is caused by a mutation in the FLCN gene which encodes the protein folliculin. Clinical signs include multiple benign growths of the skin and lungs that begin to manifest in the second or third decade of life. The clinical course is characterized by the progressive growth of new and existing neoplasms. In those with mutations in both copies of FLCN, the kidneys may also be affected by the growth of benign or malignant neoplasms.

**Synonyms:** - Birt-Hogg-Dube syndrome