Iatrogenic Spinal Subdural Collections: A Review of Spinal Meningeal Anatomy, Pathomechanisms, and Multimodality Imaging Findings

E. Gulko, R.L. Zampolin, T.S. Miller, K. Shifteh, J. Burns, and J.A. Bello

View Article on Neurographics Website

Date of Activity Release: Dec. 1, 2016
Date of Activity Expiration: Dec. 1, 2019

Target Audience:
Intended for neuroradiologists and neuroradiology trainees with varying degrees of experience.

Learning Objectives:
Understand spinal meningeal anatomy and pathomechanisms thatlead to subdural collections; recognize key imaging features that distinguish spinal subdural collections from epidural or subarachnoid collections; recognize imaging findings of subdural collections during image-guided procedures to prevent misplaced injections.

Iatrogenic spinal subdural collections are rare and can arise from a multitude of procedures performed in radiology, the emergency department, surgery, and other clinical settings. For the radiologist, a firm understanding of imaging findings in spinal subdural collections is required for both diagnostic and image-guided procedures. Iatrogenic spinal subdural collections may stem from bedside, image-guided, or surgical procedures. The presence of spinal subdural collections may reflect benign or pathologic processes. In this review article, we discussed the pathologic and anatomic basis for the development of iatrogenic spinal subdural collections as well as imaging findings across multiple imaging modalities.

Commercial Support
No commercial support was received for this activity.

Credit Designation Statement

The American Society of Neuroradiology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The American Society of Neuroradiology designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 Credit(s)TM. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Method of Physician Participation:
Each participant will review the corresponding Neurographics article located at Upon completion, each physician will complete and pass a post-test with a score of at least 80% to receive a CME certificate.

All individuals in control of content have disclosed the following relevant financial relationships. All of these relationships were treated as a conflict of interest, and have been resolved (C7 SCS 6.1-6.2, 6.5)

Authors have no relevant financial relationships.





Barton Branstetter 

Editor in Chief

None, N/A

Adam Flanders

Deputy Editor

Royalties, Lippincott Williams and Wilkins

Robert Quencer 

Consulting Editor

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Mark Mullins

Associate Editor

Non-remunerative position, AUR6

Meng Law

Associate Editor

Stockholder, Clinical Imaging

Michele Johnson

Associate Editor

Consultant, Boston Scientific, Inc.

Edward Escott

Associate Editor

Grant, Atherysys, Inc.; Royalties, Thieme Medical Publishers

Scott Faro

Associate Editor

None, N/A

Tina Young Poussaint

Associate Editor

None, N/A

Dheeraj Ghandi

Associate Editor

Grant, Arstasis, Axera Inc.; Consultant, Covidien, EV3

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