sutural diastasis

Sutural diastasis is an abnormal widening of the skull sutures. It may be physiological in a neonate during a growth spurt.


In non-traumatic scenarios accelerated growth of the sutural connective tissue without concurrent ossification is the underlying pathology.


Radiographic features

  • widening of the sutures may be appreciated on plain radiograph and is better still appreciated on CT
  • the following widths are considered to be diagnostic of sutural diastasis
    • >10 mm at birth
    • >3 mm at two years
    • >2 mm at three years
  • in cases of trauma, it may be associated with fractures
  • in cases of mass lesions or elevated intracranial pressure, secondary evidence of the same would be demonstrated

See also

Siehe auch: