Superior sagittal sinus

The superior sagittal sinus (SSS) is the largest dural venous sinus. As the name suggests, it runs in a sagittal plane from the anterior aspect of the falx cerebri at the foramen cecum to its termination at the confluence of sinuses at the occipital protuberance, where it usually proceeds rightward and into the right transverse sinus. It receives venous blood from the cortical veins through the cerebral hemispheres

Normal variants

Anatomic variations of the superior sagittal sinus are frequent.

Variations of SSS include:

  • variations in the anterior (rostral) SSS (most frequent)
  • hypoplasia of the middle part of SSS

Four types of variations of the anterior (rorstral) superior sagittal sinus may be identified:3

  • classic anatomy with a fully developed rostral SSS
  • duplication of the rostral SSS
  • unilateral hypoplastic rostral SSS
  • complete or bilateral hypoplastic rostral SSS,  in those cases of complete hypoplastic rostral SSS, the absent portion of the superior sagittal sinus is replaced by a pair of large parasagittal superior frontal cortical veins that run dorsally to join the origin of the SSS close to the coronal suture
Anatomy: Brain

Anatomy: Brain

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Article information

rID: 5041
Section: Anatomy
Synonyms or Alternate Spellings:
  • SSS

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Cases and figures

  • Figure 1: dural sinuses
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  • Figure 2: sectional anatomy
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  • Angiogram - annotated
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  • Angiogram - annotated
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  • Case 1: Normal variant hypoplastic rostral superior sagittal sinus
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