Final answer:
Hereditary hemorrhagic telangiectasia, also known as Osler-Weber-Rendu syndrome, is a genetic disorder that affects the blood vessels and causes abnormal growth of blood vessels throughout the body.
Step-by-step explanation:
Hereditary hemorrhagic telangiectasia, also known as Osler-Weber-Rendu syndrome, is a genetic disorder that affects the blood vessels and causes abnormal growth of blood vessels throughout the body. These abnormal blood vessels are fragile and prone to bleeding, which can lead to symptoms such as nosebleeds, gastrointestinal bleeding, and stroke. The syndrome is caused by mutations in certain genes involved in the development and maintenance of blood vessels.