Telangiectasia, hereditary hemorrhagic
A genetic disease characterized by the presence of multiple direct connections between arteries and veins called arteriovenous malformations (AVMs). Small AVMs, or telangiectases, close to the surface of skin and mucous membranes often rupture and bleed after slight trauma. Abbreviated HHT. The most common manifestations of HHT are recurrent nosebleeds beginning at about 12 years of age. About one-fourth of individuals with HHT will develop gastrointestinal bleeding. Large AVMs may also bleed in the brain, lung, or other sites. HHT is inherited as an autosomal dominant trait. Most patients have a parent with HHT. HHT is unusual in that it can be caused by a mutation in at least three different genes. Also known as Osler-Rendu-Weber syndrome and Rendu-Osler-Weber syndrome.
The use of medical information exchanged from one site to another via electronic communications for the health and education of the patient or healthcare provider and for the purpose of improving patient care. Telemedicine includes consultative, diagnostic, and treatment services.
Serving an ultimate purpose in its design. For example, “What is the true purpose of the nose?” That is a teleological question. For another example, to say that all evolutionary changes occur for a definite purpose is a teleological explanation of evolution. “Teleological” comes from ancient Greek roots but did not enter English until the […]
The study of the ultimate purpose of the design of something in nature. For example, “what is the true purpose of the nose?” is a teleological question and, to say that all evolutionary changes occur for a definite purpose is a teleological explanation of evolution. “Teleology” comes from ancient Greek roots but it (and teleological) […]
static image-based systems, real-time systems, and virtual slide systems. Static image systems have major benefits of being the most reasonably priced and usable in the widest range of settings, but have the significant drawback in only being able to capture a selected subset of microscopic fields. Real-time systems and virtual slides allow a consultant pathologist […]
Surgical procedures carried out at a distance thanks to advances in robotic and computer technology and their applications to surgery. The first demonstration of trans-Atlantic telesurgery was reported in 2001 when surgeons in New York operated on a 68-year-old woman in Strasbourg, France and used remote-controlled robots to resect (took out) her gall bladder by […]