Spinal dermoid

Case contributed by A.Prof Frank Gaillard

Presentation

Altered sensation with a vague truncal sensory level.

Patient Data

Age: 45 years
Gender: Male
Modality: MRI

An intradural extramedullary mass having mixed fat and solid enhancing components, displacing and compressing the cord anteriorly.

Modality: Annotated image

A mass is located behind the spinal cord (C) in an extramedullary intradural location. It is composed of tissue which follows fat on all sequences (bright on both T1 and T2) including fat saturated post contrast T1 (dotted yellow line and arrows). Prominent chemical shift artefact is also noted as a black line anterior and a bright white line posterior to the mass (green arrows). A smaller anterior component is of intermediate intensity and demonstrated faint contrast enhancement (red arrows). 

Case Discussion

There are few fat containing intradural lesions, and the presence of a solid enhancing component excludes a simple lipoma, making the diagnosis almost certainly that of a dermoid, subsequently histologically confirmed. 

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Case Information

rID: 4723
Case created: 2nd Oct 2008
Last edited: 10th May 2017
Tag: spine
Inclusion in quiz mode: Included

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