Mondo Description Rendu-Osler-Weber disease, also called hereditary hemorrhagic telangiectasia (HHT), is a disorder of angiogenesis leading to arteriovenous dilatations: cutaneo-mucosal hemorrhagic telangiectasias and visceral shunting.

Disease Ontology Description An autosomal dominant disease characterized by the presence of multiple arteriovenous malformations that lack intervening capillaries and result in direct connections between arteries and veins.