It clearly has plates that can reasonably be interpreted as thecal.
Seawater is pumped through these canals and gas exchange takes place within the thecal interior.
Magnetic resonance imaging of the pelvis showed a large sacral mass that replaced the sacrum and compressed the thecal sac, extending anteriorly into the pelvic cavity, occupying a major portion of it.
These can all narrow the thecal sac, but the location and imaging features of the process in this case are highly suggestive of a disk herniation.
It is useful in distinguishing epidural abscess from the adjacent compressed thecal sac and other potential compressive lesions, such as a herniated disc.
Definition of thecal in US English:
thecal
adjective
See theca
Example sentencesExamples
These can all narrow the thecal sac, but the location and imaging features of the process in this case are highly suggestive of a disk herniation.
Magnetic resonance imaging of the pelvis showed a large sacral mass that replaced the sacrum and compressed the thecal sac, extending anteriorly into the pelvic cavity, occupying a major portion of it.
It is useful in distinguishing epidural abscess from the adjacent compressed thecal sac and other potential compressive lesions, such as a herniated disc.
Seawater is pumped through these canals and gas exchange takes place within the thecal interior.
It clearly has plates that can reasonably be interpreted as thecal.