arteriovenous malformation

== English == === Noun === arteriovenous malformation (plural arteriovenous malformations) (pathology) A congenital disorder in which arteries are connected directly to veins rather than through capillaries that distribute oxygen and nutrients. These connections, often called a nidus, can be extremely fragile and prone to bleeding. ==== Synonyms ==== Also known by the abbreviation AVM. ==== Translations ====