An incidental persistent falcine sinus with dominant straight sinus and hypoplastic distal superior sagittal sinus

Pediatr Radiol. 2006 Jan;36(1):65-7. doi: 10.1007/s00247-005-0009-x. Epub 2005 Nov 8.


An incidental persistent falcine sinus was detected in an otherwise normal brain on MRI in a 12-year-old girl who underwent imaging after clinical suspicion of acute disseminated encephalomyelitis. The falcine sinus was associated with a hypoplastic posterior third of the superior sagittal sinus and a dominant straight sinus. Generally, atresia or hypoplasia of the straight sinus is associated with a persistent falcine sinus in postnatal life; otherwise, the falcine sinus disappears before birth. We discuss the embryological basis for such an association in this case.

Publication types

  • Case Reports

MeSH terms

  • Child
  • Cranial Sinuses / abnormalities*
  • Cranial Sinuses / embryology
  • Female
  • Humans
  • Intracranial Arteriovenous Malformations / diagnosis
  • Magnetic Resonance Imaging*