Aneurysm, also spelled aneurism, is the dilation of artery that lead to fatal rupture of the arterial wall.

More inclusively, aneurysm is known as ectasia, ectasis, and ectasy. For example,

  • Atelectasis is the dilation of lungs of newborn
  • Bronchiectasis is of bronchial tubes
  • Phlebectasia is of vein
  • Sialectasis is of the ducts of the salivary glands, especially the parotids
  • Telangiectasis is of small blood vessels
  • Trichangiectasia is of capillaries