title: Azygos
text: # Azygos
  
  Azygos (impar), from the Greek άζυξ, refers to an anatomical structure that is unpaired. This is relatively unusual, as most elements of anatomy reflect bilateral symmetry. Azygos may refer to:
  
  * Azygos anterior cerebral artery
  * Azygos artery of vagina
  * Azygos lobe
  * Azygos vein
  * Ganglion impar
  