13 dr ahmed esawy imaging oral board of spine imaging part iii

The Art of Radiology

Epidural fibrosis and enhancement of degenerative disk

Bandlike signal decrease in marrow signal adjacent to degenerative disk

Mixed pattern of aftered signal adjacent to degenerated disk.

Lumbar Facet Joint Arthrography

NORMAL LFJ ANATOMY

PATHOLOGIC FINDINGSAbnormal Articular Volume

Synovial Cysts and Diverticula

MR Imaging of Myelopathy

Myelopathy means

Myelopathy

Compressive Myelopathy of extradural origin

Non-Compressive Myelopathy (intramedullary)

Lipomyelomeningocele

Postoperative herniated disk at L5-S1 level with extensive scarring

Most herniated disks detected postoperatively at the site of surgery do not enhance

Most herniated disks detected postoperatively at the site of surgery do not enhance

Scar tissue within the laminectomy defect and posterior paraspinal soft tissue may or may not enhance, but scar in the epidural space enhances homogeneously

Postoperative disk herniation L4-5 left. Herniated disk (arrow) is slightly hypointense centrally with peripheral darker rim on axial T2 fast spin echo image

Postoperative arachnoiditis

Role of Diffusion WIs and T2* GRE pulse sequences in

dubious Vertebral Marrow pathological Lesions

Common Types of Vertebral Marrow Lesions

Vertebral Abnormalities

Deformity

Opposed phase