An important note to read...this could be a factor in those with high jugular inpingement. Here's a study showing how this bone can press on jugular veins. http://www.ncbi.nlm.nih.gov/pubmed/21866063


How an enlarged styloid process may cause CCSVI or CCSVI-like symptoms
  Note this article (below) discussing surgery to repair a bony bit of the skull called the styloid process....