Bilateral retro-auricular dermal sinus tracts with intradural extension: Case report

Farideh Nejat, Mark S Dias, Behzad Eftekhar, Nahid Nasri Roodsari, Saiid Hamidi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The authors describe a previously unreported malformation involving paired, bilaterally symmetrical dermal sinus tracts in the retro-auricular area, both of which passed through the asterion and posterior fossa dura mater to end intracranially. Cranial dermal sinus tracts are congenital lesions that virtually always originate from the midline scalp posteriorly at the external occipital protuberance, anteriorly at the nasion or along the nasal dorsum, or in the posterior parietal midline. A lateral origin is extremely rare, and intracranial extension of a lateral dermal sinus tract has not been reported previously. The authors propose an embryological mechanism to explain the origin of this rare malformation and discuss its management.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalJournal of Neurosurgery
Issue number1
Publication statusPublished - Jul 2003
Externally publishedYes


  • Dura Mater
  • Female
  • Functional Laterality
  • Humans
  • Infant, Newborn
  • Magnetic Resonance Imaging
  • Neurosurgical Procedures
  • Occipital Lobe
  • Spina Bifida Occulta
  • Case Reports
  • Journal Article


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