Primary Diagnosis

Intradural dermoid cyst with fatty filum terminale and tethered spinal cord.

Secondary Diagnosis

spinal canal

Diagnosis Discussion

There is a large intradural mass at the L3-4 level which is only mildly hyperintense on T1 weighted images. Note that the mass is contained by the thickened, fat containing filum terminale. The conus medullaris is low lying.

General Anatomic Area:

Lumbar

Secondary Anatomic Area:

spinal canal

Disease Category:

Congenital

Contributor:

Erin Simon, M.D.

Date:

04/01/2005

Difficulty Level:

Easy

Pathology Confirmed?:

Yes
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ACR Category Number:

N/A

Keywords:

liporaschisis, dysraphic states, lipoma