Source:http://linkedlifedata.com/resource/umls/id/C0346011
NCI: A rare, pilar-associated mesenchyme neoplasm with follicular differentiation. It usually occurs in the face, neck, and chest. It presents as a dome-shaped papular lesion. It is composed of epithelial and mesenchymal cells. Patients with Birt-Hogg-Dube syndrome may develop follicular fibromas.