Indentation On Thecal Sac. Thecal Sac Mri These cysts can form within the dural sac or outside it, pressing against the spinal cord and causing indentation The thecal sac, also known as the dural sac, is a membrane sheath that covers the spinal cord and the surrounding cerebral spinal fluids (CSF)
indentation of thecal sac Archives Spine Info from www.spineinfo.com
If the cause is epidural lipomatosis, the characteristic "Y sign" or "stellate sign" is revealed on axial magnetic resonance imaging (MRI) because of the excess fat in the epidural compartment [ 3 , 5 , 6 ] It shows there may be a minimal indentation of the thecal sac at cervical 5 and 6 vertebrae, and mild indentation at few other cervical levels due to a disc prolapse, which might cause a headache, a neck pain or a tingling sensation of the upper limbs
indentation of thecal sac Archives Spine Info
It acts as a barrier, safeguarding the delicate spinal cord These cysts can form within the dural sac or outside it, pressing against the spinal cord and causing indentation Since thecal sac houses spinal cord and cauda equina, it cushions them against damage from other spinal structures
Thecal Sac Mri. Indentation means there is some compression of the thecal sac itself, but it does not appear to affect the nerves. What is Thecal Sac Indentation? The thecal sac is a protective membrane that encloses the spinal cord and cerebrospinal fluid
3 Central Cervical Disc Protrusion Images, Stock Photos, 3D objects, & Vectors Shutterstock. What causes thecal sac effacement? This is typically caused by some sort of trauma to the cervical spine, like an auto accident, sports injury, or damage from a large extruded disc Thecal sac indentation occurs when external factors, such as a herniated disc or spinal stenosis, exert pressure on the sac, causing it to become compressed.