The epidural venous plexus is a venous plexus embedded within the epidural fat of the vertebral canal. It is situated within the anterior epidural space (the outermost part of the spinal canal). The plexus extends from the skull base to the sacrum. It is surrounded by sparse fat (although its levels increase inferiorly). It drains into the cavernous sinus of the cranial cavity; it also communicates with the radicular veins.
References
Patestas, Maria A.; Gartner, Leslie P. (2016). A Textbook of Neuroanatomy (2nd ed.). Hoboken, New Jersey: Wiley-Blackwell. p. 71. ISBN 978-1-118-67746-9. 978-1-118-67746-9 ↩
"Anatomy of the Epidural Space" University of Washington http://depts.washington.edu/anesth/regional/epiduralspaceframes.html ↩
Detlev Uhlenbrock, Dirk Brechtelsbauer "MR imaging of the spine and spinal cord" pg469 https://books.google.com/books?id=4mZdMPduh3UC&dq=%22Epidural+venous+plexus%22&pg=PA469 ↩
Patestas, Maria A.; Gartner, Leslie P. (2016). A Textbook of Neuroanatomy (2nd ed.). Hoboken, New Jersey: Wiley-Blackwell. p. 71. ISBN 978-1-118-67746-9. 978-1-118-67746-9 ↩