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C-2220 - What we need to know about Epidural Space. Anatomy and Pathology.

N. FLORES, J. GUERRA SALAZAR; Quito/EC Type: Educational Exhibit
Area of Interests: Musculoskeletal spine, Anatomy, Neuroradiology spine
Imaging Technique: MR
Procedures: Education, Diagnostic procedure
Special Focus: Education and training
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Learning objectives:   To describe imaging anatomy of spinal epidural space  To know the pathology of epidural space, classified in extrinsic and intrinsic lesions. To determine the causes: traumatic, degenerative, infective, neoplastic and others         

Background: Definition: The spinal epidural space is located between the dura and the ligamentum flava and periosteum of the vertebral bodies, pedicles and laminae. (1)   Extends from foramen magnum to posterior sacroccocygeal ligament. (2)   Boundaries:   Superiorly: Fusion of the spinal and p[...]

Findings and procedure details: INTRINSIC PATHOLOGY. (Fig.1)   1. DEVELOPMENTAL         a.   Vascular Malformation: on T2W hyperintense cord and intradural flow voids on cord surface. (Fig.2)   2. TRAUMATIC        a.   Hemorrhage : postrauma, post[...]

Conclusion:   After an appropiate clinical assesment imaging is fundamental in the differential diagnosis of epidural processes.   The use of the different MRI sequences will help as in the assesment of the multiple contents of the epidural space.

Personal information: N.Flores.

References: 1. Chhabra A, Batra K, Satti S. Spinal Epidural Space:
Anatomy, Normal variations, and Pathological Lesions 
on MR Imaging. Neurographics J. 2006 Vol 5 issue1. http://www.asnr.org/neurographics/5/1/28/3.shtml 2. Harnsberger H, osborne A, Macdonald A. Diagnostic and surgical imaging anatomy. Brain, [...]

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