Lacunar Skull

  • Etiology:
    — Nothing to do with intracranial pressure
    — Appropriate fetal ventricular expansion and intracranial pressure leads to collagen bundle of calvarial plates being arranged in orderly radial fashion
    — In patients with myelomeningocele ventricular pressure is decompressed into dilated cerebrospinal fluid space resulting in disordered arrangement of collage bundle and thus lacunar appearance of skull
  • Imaging:
  • DDX:
  • Complications:
  • Treatment: Spontaneous resolution by 6 months
  • Clinical: Associated with Chiari II malformation

Radiology Cases of Lacunar Skull

Radiograph of lacunar skull in Chiari II malformation
Lateral radiograph of the skull shows a disordered arrangement of the inner table of the skull.