Myxopapillary Ependymoma
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This is our third example of ependymoma.
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This is what is known as a myxopapillary ependymoma.
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The difference between the myxopapillary ependymoma
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and the other cord ependymomas
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is its predilection for the filum.
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The myxopapillary ependymoma is considered an
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intradural extramedullary lesion, even though
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it is involving the filum,
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which is the extension of the spinal cord.
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So the spinal cord, as you can see,
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is ending at the appropriate L1 level,
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and we see this lesion which expands from that
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termination, which is the filum.
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So this is a myxopapillary ependymoma.
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It's an ependymoma that typically occurs in an
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older age group than the more stereotypical cord
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ependymomas, and it may be associated with calcification,
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as well as hemorrhage,
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but it occurs in the lumbosacral region.
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The myxopapillary ependymoma has variable
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contrast enhancement and is usually,
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as one would expect, affecting the lower
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extremities, as well as bowel and bladder continents.
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
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