Indian Journal of Radiology Indian Journal of Radiology  

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NEURORADIOLOGY Table of Contents   
Year : 2012  |  Volume : 22  |  Issue : 2  |  Page : 108-115
Case Series: Long segment extra-arachnoid fluid collections: Role of dynamic CT myelography in diagnosis and treatment planning

Department of Radiology, Henry Ford Health System, Detroit, MI, USA

Correspondence Address:
Horia Marin
Division of Neuroradiology, Department of Radiology, Henry Ford Health Systems, 2799 West Grand Blvd, Detroit, 48202. MI
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-3026.101083

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We report five patients in whom spinal MRI revealed extra-arachnoid fluid collections. These spinal fluid collections most likely resulted from accumulation of cerebrospinal fluid (CSF) from a dural leak. The patients presented with either compressive myelopathy due to the cyst or superficial siderosis (SS). All of these fluid collections were long segment, and MRI demonstrated the fluid collections but not the exact site of leak. Dynamic CT myelogram demonstrated the site of leak and helped in the management of these complicated cases. Moreover, we also found that the epicenter of the fluid collection on MRI was different from the location of the leak on a dynamic CT myelogram. Knowledge of these associations can be helpful when selecting the imaging studies to facilitate diagnosis and treatment.

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