“…Studies indicate that 3-19% of affected individuals have ungual fibromas, 11,14,17,27 42-87% have angiofibromas 11,14,17,18,27,28,[48][49] and more than 64% have depigmented maculae. 11,14,17,18,27,28,48 Reports of individuals having shagreen patches vary from 18-75%. 11,14,17,18,26 The incidence of forehead plaques has been reported as 25%.…”