Breast Scirrhous Carcinoma, also known as infiltrating carcinoma of breast with fibrotic stroma, is related to osteogenesis imperfecta, type viii and hypermobile ehlers-danlos syndrome. An important gene associated with Breast Scirrhous Carcinoma is P4HA2 (Prolyl 4-Hydroxylase Subunit Alpha 2), and among its related pathways/superpathways are Innate Immune System and ERK Signaling. Affiliated tissues include breast.