vascular malformation true A non-neoplastic disorder that is the result of defects of vascular morphogenesis. vascular malformation The majority are present at birth. Some can be acquired. malformation, vascular Cerebral vascular malformations are a heterogeneous group of disorders that may be associated with epilepsy. MONDO:0024291 MESH:D054079 malformations, vascular http://www.case.edu/EpSO.owl#VascularMalformation structural etiology