Degenerative disk disease
From Radipedia
Disk Herniation
- Focal - <25% of the disk circumference
- Broad based - 25%-50%
- Bulging - > 50%
Protrusion - if the thickness of the herniated disk is less then the thickness of the intervertebral disk
Extrusion - if the thickness of the herniated disk is greater then the thickness of the intervertebral disk
Sequestration - when extruded disk is not in continuity with parent disk
Degenerative End Plate Changes (MRI)
Type 1 - water signal (edema)
Type 2 - fat signal
Type 3 - sclerosis
