PMC5102252_01
Sagittal MRI images of the lumbar spine from 2009 (A-C) and 2011 (D-F) showing interval growth of the ventriculus terminalis (arrow) as a T2-hyperintense conus medullaris lesion without any surrounding cord edema (A, D) that is T1-hypointense (B, E) with rim enhancement on post-gadolinium T1-weighted images (C, F).
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MRI performed two years apart demonstrated a slowly growing intramedullary T2-hyperintense well-circumscribed cystic mass within the conus medullaris of the spinal cord without any surrounding cord edema (Figure 1A [2009] and Figure 1D [2011], arrow). On T1-weighted imaging, this mass was hypointense (Figure 1B [2009] and Figure 1E [2011], arrow) with rim-enhancement following intravenous gadolinium administration (Figure 1C [2009] and Figure 1F [2011], arrow).