Modified with permission from: Lowrie ML, Platt SR, Garosi LS.  Extramedullary spinal cysts in dogs. Vet Surg 2014;43:650-62.

   
The chart above outlines the location of ventral intraspinal cysts ("discal cysts") and acute hydrated nucleus pulposus extrusion in 18 dogs across 3 studies (See "Further Reading" below: Beltran, et al.; Kamashina, et al.; Konar, et al.).