What Is a Ventral Thecal Sac?

By Staff WriterLast Updated Mar 27, 2020 5:44:49 PM ET
SCIEPRO/Science Photo Library/Getty Images

The ventral thecal sac refers to the ventral, or front side of the thecal sac, which is a membrane that surrounds the spinal cord and some cerebrospinal fluid. A diagnosis of spinal injury and disease takes the appearance of the thecal sac into consideration.