Fibromatosis, Gingival, 1, also known as fibromatosis, gingival, hereditary, is related to pulmonary emphysema and keratoconus. An important gene associated with Fibromatosis, Gingival, 1 is SOS1 (SOS Ras/Rac Guanine Nucleotide Exchange Factor 1), and among its related pathways/superpathways are Integrin Pathway and Response to elevated platelet cytosolic Ca2+. Affiliated tissues include bone, and related phenotypes are gingival overgrowth and gingival fibromatosis