Brain Small Vessel Disease 3, also known as bsvd3, is related to familial porencephaly and aortic valve prolapse. An important gene associated with Brain Small Vessel Disease 3 is COLGALT1 (Collagen Beta(1-O)Galactosyltransferase 1), and among its related pathways/superpathways are Pleural mesothelioma and Cytoskeleton remodeling Regulation of actin cytoskeleton by Rho GTPases. Affiliated tissues include brain, and related phenotypes are cerebral calcification and leukoencephalopathy