IS Case 299: Ventriculus terminalis

Ahmed El-Sherief, MD

Imaging Sciences URMC 2009
Publication Date: 2009-08-05


Patient is a 12-month-old male with right leg weakness and sacral dimple on physical exam.


Ovoid cystic dilatation of the distal central spinal cord between the conus medullaris tip and filum terminale origin.


Pathology (microanatomy):

Location: between conus medullaris tip and filum terminale origin

Imaging Findings (macroanatomy):

Clinical symptoms:

  • Usually asymptomatic (likely to be identified in 2.6% of children without spinal disease)

Associated abnormalities: Occasionally identified with:


  1. Bowen B , Rivera A , Saraf-Lavi E. Spine Imaging: Case Review Series. 2nd ed., Mosby, 2008.
  2. Ross JS, Brant-Zawadski M, Moore K, et al. Diagnostic Imaging: Spine. Amirsys, 2004.

4 images