MR Imaging Findings of Spinal Dural Involvement with Wegener Granulomatosis
Sait Albayrama,
Osman Kizilkiliea,
Ibrahim Adaletlia,
Nuray Erdogana,
Naci Kocera and
Civan Islaka
a From the Department of Radiology, The Cerrahpasa Medical School, Istanbul, Turkey
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FIG 1. MR images show two dural soft-tissue masses (arrows) located at the cervical and thoracic (C1–C2 and T1–T4, respectively) levels. The dural soft tissue masses caused indentation to the spinal cord without prominent cord compression. They wrapped around the spinal cord, especially posteriorly at the cervical level and left posterolaterally at the thoracic level. These lesions are minimally hyperintense to spinal cord on T1-weighted MR images and prominently hypointense on T2-weighted images. Contrast-enhanced MR images reveal no prominent enhancement in these lesions except minimal peripheral enhancement. No abnormal signal intensity is present in the spinal cord on the T2-weighted images at the level of the lesions. At the lower cervical and upper thoracic levels, minimal anterior dural thickening with the same signal intensity features of dural masses on the C7–T1–T2 levels are also noted (arrow).
A, Sagittal T2-weighted (4550/137/2 [TR/TE/NEX]) MR image.
B, Axial T2-weighted (4360/100/2) MR image.
C, Sagittal T1-weighted (617/13/2) MR image.
D, Axial T1-weighted (516/13/2) MR image.
E, Sagittal contrast-enhanced T1-weighted (617/13/2) MR image obtained after the IV administration of contrast material.
F, Axial contrast-enhanced T1-weighted (516/13/2) MR image obtained after the IV administration of contrast material.
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FIG 2. Follow-up MR images obtained 1 month later, after treatment.
A, Two sagittal T2-weighted (4550/137/2) MR images.
B, Four contrast-enhanced axial T1-weighted (4360/100/2) MR images reveal regression of posterior dural soft tissue masses (stars and arrows).
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AJNR - American Journal of Neuroradiology