Pediatric Subependymal Cyst

  • Etiology:
    — Congenital (germinolytic) due to hypoxia or in utero germinal matrix hemorrhage or infection or genetic or metabolic
    — Acquired post germinal matrix hemorrhage
  • Imaging US: Small well circumscribed hypoechoic lesion in germinal matrix
  • DDX:
  • Complications:
  • Treatment: None
  • Clinical:

Radiology Cases of Subependymal Cyst

US of subependymal cyst
The diagnosis was subependymal cyst most likely due to neonatal intraventricular hemorrhage Grade I.
US of subependymal cyst
Coronal (above) and sagittal (below) US of the brain show a small, round, well circumscribed hypoechoic lesion in the left germinal matrix.