[abnormal, tangled collections of dilated blood vessels that result from congenitally malformed vascular structures in which arterial afferents flow directly into venous efferents without the usual resistance of an intervening capillary bed; these disorders exist at, and usually before, birth regardless of their causation. ( CSP )]
UMLS (CSP) C0596366 Relation/PAR: congenital cardiovascular disorder
Relation/CHD: Ductus Arteriosus, Patent
Congenital Arteriovenous Fistula