Keywords: AF, angiofibroma; BHDS, Birt-Hogg-Dubé syndrome; Birt-Hogg-Dubé syndrome; FF, fibrofolliculoma; TD, trichodiscoma; TSC, tuberous sclerosis complex; angiofibroma; fibrofolliculoma; mTORC1, mechanistic target of rapamycin complex 1; trichodiscoma; tuberous sclerosis complex.