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Protruded disc, extruded disc, free fragment, sequestered disc
Localized (< 50% of disc circumference) displacement of disc material beyond edges of vertebral ring apophyses
Small mass in ventral spinal canal, contiguous with intervertebral disc
Protrusion is herniated disc with broad base at parent disc
Extrusion is herniated disc with narrow or no base at parent disc
Sequestered or free fragment: Extruded disc without contiguity to parent disc
Migrated: Disc material displaced away from site of herniation, regardless of continuity to parent disc
Ossification posterior longitudinal ligament
Osteophyte
Tumor
Hemorrhage
Abscess
20% of people over age 40 have cervical foraminal stenosis
10% of people under age 40 have cervical herniation
Acute radiculopathy usually self-limited disorder with full recovery expected
Neck pain (90%)
Radicular pain (65%)
Paresthesia (89%)
Treatment
Conservative treatment
Multiple surgical approaches without clear consensus
Use fast STIR for cord disease
Axial GRE, T2* GRE for disc definition
Cervical disc herniation (CDH)
Protruded disc, extruded disc, free fragment, sequestered disc
Nonstandard: Prolapse, herniated nucleus pulposus (HNP), rupture
Localized (< 50% of disc circumference) displacement of disc material beyond edges of vertebral ring apophyses
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