Facet joint vacuum phenomenon
Facet joint vacuum phenomenon or degenerative intrafacetal gas is a feature that can be seen on spinal imaging in facet joint arthropathy as part of degenerative spondylosis.
Radiographic features
Signal characteristics are those of air and are
- T1: low signal
- T2: low signal
Differential diagnosis
In traumatic situation, consider
- traumatic intrafacetal gas
See also
