Osler-rendu-weber Disease

Also called  Rendu-osler-weber Disease, or Hereditary Hemorrhagic Telangiectasia,   a hereditary disorder causing bleeding from local capillary lesions. The disorder is classed as a type of purpura. In the disease, capillaries (minute blood vessels) in the fingertips and around the oral and nasal cavities are enlarged and have unusually thin walls; they fill with bright red (well-oxygenated) blood and are easily broken by accidental bumping or jarring,