Definition of telangiectasia in English:


(also telangiectasis)


mass nounMedicine
  • A condition characterized by dilatation of the capillaries causing them to appear as small red or purple clusters, often spidery in appearance, on the skin or the surface of an organ.

    • ‘A milder form of the same disease, termed Leber's miliary aneurysms, can present later in life as a localised cluster of dilated capillaries, aneurysms, and telangiectasia, typically in the temporal quadrants of the retina.’
    • ‘Tortuous dilation of the hepatic arteries and capillary telangiectasia of the hepatic surface in the operative field were remarkable.’
    • ‘More than 70% of pulmonary arteriovenous malformations are associated with the genetic condition, hereditary hemorrhagic telangiectasia, also known as the Osler-Weber-Rendu syndrome.’
    • ‘Telangiectasia may be a feature of hereditary haemorrhagic telangiectasia or systemic sclerosis.’
    • ‘Patients should be advised to use potent topical steroids sparingly because excessive use may lead to atrophy of the skin and telangiectasis.’


Mid 19th century: modern Latin, from Greek telos ‘end’ + angeion ‘vessel’ + ektasis ‘dilatation’.