Ehlers-Danlos/osteogenesis Imperfecta Syndrome, also known as eds/oi syndrome, is related to high bone mass osteogenesis imperfecta and breast scirrhous carcinoma. An important gene associated with Ehlers-Danlos/osteogenesis Imperfecta Syndrome is COL1A1 (Collagen Type I Alpha 1 Chain), and among its related pathways/superpathways are Development Angiotensin activation of ERK and Signaling by Receptor Tyrosine Kinases. Affiliated tissues include skin and bone.