Presentation
Discovered on routine intraventricular hemorrhage (IVH) screening.
Patient Data
Bilateral connatal cysts. The ventricles are normal in volume and symmetry with no evidence of intracranial hemorrhage.
The brain is normal in parenchymal echotexture and architecture. No mass effect or midline shift is seen. The posterior fossa is within normal limits.
Impression: No intracranial hemorrhage seen. Normal ventricular size. Stable bilateral connatal cysts.
Case Discussion
Connatal cysts are cystic lesions adjacent to the superolateral margins of the body and/or frontal horns of the lateral ventricles. Although previously considered to represent an ischemic insult, they are now considered to represent a normal variant. Connatal cysts have a reported incidence of 0.7% in pre-term low birth weight infants and usually resolve on follow up imaging.