title: Mixed split cord malformation: are we missing something?
abstract: BACKGROUND
  The new classification for split cord malformation, based on the unified theory of embryogenesis includes two types Type I and II defined on the basis of the nature of the medium septum and the state of the dural tube. According to this, these are the only two essential features needed for typing and there is never an overlap between the two main forms. We have described two cases that defy this theory.
  
  
  METHODS
  We present two patients with split cord malformation who appear to have a combination of features specific to Type I and Type II. Both patients had a partial bony spur within a single dural sac.
  
  
  CONCLUSIONS
  An overlap between the two forms of split cord malformation does exist. The role of meninx primitiva in the formation of median bony septum is debatable.
authors: Neurosurgery, PGIMER, Chandigarh 160012, India. drpravin salunke@yahoo.co.uk
authors: Pravin
authors: P
authors: Salunke
authors: Priyamvadha
authors: P
authors: Kovai
authors: Vinod
authors: V
authors: Malik
authors: Manish
authors: M
authors: Sharma
mesh_terms: D002648:Child; D004388:Dura Mater / Q000002:abnormalities / Q000473:pathology; D006801:Humans; D007223:Infant; D008067:Lipoma / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D009436:Neural Tube Defects; D013116:Spinal Cord / Q000002:abnormalities* / Q000473:pathology; D013126:Spinal Nerve Roots / Q000002:abnormalities / Q000473:pathology; D014057:Tomography, X-Ray Computed