CHORUS

Collaborative Hypertext of Radiology

Musculoskeletal system

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degenerative disc disease

• narrowing of disc space; osteophytes; bone sclerosis
• disc calcification
• vacuum disc phenomenon (nitrogen at sites of negative pressure)

• Type I (4%): decreased signal on T1; increased signal on T2; vascularized fibrous tissue
• Type II (16%): increased T1; isointense T2; local fatty replacement of marrow
• Type III: decreased T1; decreased T2; advanced sclerosis

• disc bulging
• disc herniation
• disc sequestration
• spinal stenosis

Related CHORUS documents: bulging disc herniation of nucleus pulposus (HNP) disc sequestration cervical disc herniation extradural mass Schmorl node

Copyright © 2013, Charles E. Kahn, Jr.