Hallermann-Streiff Syndrome, also known as francois dyscephalic syndrome, is related to skin atrophy and syndactyly, type iii. An important gene associated with Hallermann-Streiff Syndrome is GJA1 (Gap Junction Protein Alpha 1), and among its related pathways/superpathways are Vesicle-mediated transport and G-protein signaling G-Protein alpha-i signaling cascades. Affiliated tissues include skin and eye, and related phenotypes are frontal bossing and abnormality of the dentition