A rare case of third ventricular epidermoid cyst as seen by newer MRI sequences.
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Date
2014-03
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Abstract
Aim: We describe a 52 year old gentleman who had a third ventricular lesion, presumed
to be epidermoid cyst, which is very rare. We also describe the appearances of this rare
condition on newer MRI sequences.
Presentation of Case: Third ventricle is a rare site of epidermoid cysts and difficult to
visualise specially in routine MRI sequences. We used 3D FLAIR sequence as part of
routine MRI protocol that was helpful in raising suspicion initially, aided by clinical
presentation. Subsequent 3D T2 SPACE sequence confirmed the presence of
abnormality.
Discussion: The case highlights the importance of high resolution 3D FLAIR sequence
as part of initial MRI protocol that is devoid of CSF flow artefacts and therefore helpful for
small intraventricular lesions. Importance of 3D T2 SPACE is also highlighted which is
another new MRI sequence. It has excellent spatial resolution without artefacts that is
helpful in clearly delineating the presence of small lesions such as epidermoid cyst and
its relationship with surrounding structures and increasing diagnostic certainty.
Conclusion: We present a rare case of presumed third ventricular epidermoid cyst and
potential role of newer MRI sequences in small intraventricular lesions.
Description
Keywords
Third ventricle, epidermoid, 3D FLAIR, SPACE
Citation
Man Ralph Xiu-Gee, Kanodia Avinash Kumar, Nicholas Richard Stephen, Main Gavin. A rare case of third ventricular epidermoid cyst as seen by newer MRI sequences. International Neuropsychiatric Disease Journal. 2014 Mar-Apr 2(2): 68-77.