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Arteriovenous Malformations

Abnormal formation of blood vessels that shunt arterial blood directly into veins without passing through the CAPILLARIES. They usually are crooked, dilated, and with thick vessel walls. A common type is the congenital arteriovenous fistula. The lack of blood flow and oxygen in the capillaries can lead to tissue damage in the affected areas.

Year introduced: 1973(1969)

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Tree Number(s): C14.240.850.750, C14.907.150, C16.131.240.850.750

MeSH Unique ID: D001165

Entry Terms:

  • Arteriovenous Malformation
  • Malformation, Arteriovenous
  • Malformations, Arteriovenous

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