Intraspinal dermoid cyst

Case contributed by Dr Ian Bickle

Presentation

Renal mass on ultrasound.

Patient Data

Age: 85 years
Gender: Male
CT

4.5cm left lower pole renal mass.

Non enhancing mixed attenuation lesion in the spinal canal at the level of T12.

MRI

2.5 cm intradural, extramedullary mass dividing the filum terminale just distal to the conus.  Fat and soft tissue composition.  No enhancement.

4.5 cm left lower pole renal tumor.

Case Discussion

The appearances are in keeping with an incidental spinal dermoid cyst identified at the time of assessing for a renal mass (a renal cell carcinoma).

This is one of the less commonly observed intradural, extramedullary masses.

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Case information

rID: 85796
Published: 12th Jan 2021
Last edited: 7th Jul 2021
System: Spine
Inclusion in quiz mode: Included

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