Duplicated filum terminale in the absence of split cord malformation: A potential cause of failed detethering procedures

Elias Rizk, Nimer Adeeb, Ahmed E. Hussein, R. Shane Tubbs, Curtis J. Rozzelle, W. Jerry Oakes

Research output: Contribution to journalArticle

6 Scopus citations


Introduction: A duplicated filum terminale appears to be a rare finding in the absence of a split cord malformation. Herein, we discuss this finding and its potential dysembryology. Case reports: We report two cases of duplicated filum terminale without split cord malformation. The first case presented as an incidental finding with thickened filum terminale. At time of surgery, a thickened filum was resected and a smaller size filum was transected and both were confirmed with pathologic examination. The second case presented with a lumbar skin hemangioma. Screening MRI showed a duplicated filum terminale with fat signal in both structures. Pathology also confirmed the diagnosis of two fila terminalia. Conclusions: The neurosurgeon should consider the possibility of two fila terminalia during operation to transect a single filum for tethered spinal cord.

Original languageEnglish (US)
Pages (from-to)709-711
Number of pages3
JournalChild's Nervous System
Issue number4
Publication statusPublished - Apr 2014


All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Clinical Neurology

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