Familial Isolated Trichomegaly, also known as long eyelashes, is related to trichomegaly and wiedemann-steiner syndrome. An important gene associated with Familial Isolated Trichomegaly is FGF5 (Fibroblast Growth Factor 5), and among its related pathways/superpathways are Chromatin organization and Chromatin Regulation / Acetylation. Affiliated tissues include skin and testis, and related phenotypes are Increased BBC3 mRNA expression and behavior/neurological