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Lumbar Spine Lipoma

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This was a seven-month-old child who had spasticity

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in the lower extremities, bilaterally.

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We have the T1-weighted scan,

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the STIR image and an axial T1-weighted scan.

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As we look at the T1-weighted scan,

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we see that we have a lesion that

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is brightened signal intensity,

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which is posterior to the spinal cord.

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In what compartment is it located?

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Well, we see that the CSF space is widened at the border

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of the lesion and the spinal cord

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is separate from the lesion.

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And therefore we are in the intradural

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extramedullary space.

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The spinal cord is actually terminating

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at an appropriate level,

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so there is no tethering of the spinal cord.

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And yet this lesion,

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which is bright on T1 and suppresses on the

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STIR image, is clearly containing fat,

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and that's verified also on T1-weighted scan

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without contrast, showing bright signal intensity.

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On this scan, the spinal cord is being displaced anteriorly.

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So this is an example of a lipoma in the

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intradural extramedullary space without

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associated spinal dysraphism.

Report

Description

Faculty

David M Yousem, MD, MBA

Professor of Radiology, Vice Chairman and Associate Dean

Johns Hopkins University

Tags

Spine

Neuroradiology

Neoplastic

Musculoskeletal (MSK)

MRI

Acquired/Developmental

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