paracondylar process

Paracondylar process is a rare anatomical variant of the occipital bone, where a bony exostosis extends caudally from the paracondylar region (lateral to the native occipital condyles), typically articulating with the superior surface of a transverse process of the atlas. This may be unilateral or bilateral.

The paracondylar process represents a spectrum of occipital vertebrae variations and the 3 other most common variants include:

  • third condyle (condylus tertius)
  • basilar process
  • prebasioccipital arch
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