Periventricular Leukomalacia

  • Etiology: hypotension in watershed / endarterial regions leads to necrosis of periventricular white matter especially near frontal horns and trigones, often bilateral + symmetric (nonhemorrhagic ischemic necrosis, watershed ischemic infarct)
  • Imaging: bilateral and symmetric, periventricular edema / echogenicities early + periventricular cysts late
  • Note: do not confuse with normal peritrigonal blush
  • Complications: cystic encephalomalacia

Radiology Cases of Periventricular Leukomalacia