From: Phase-contrast magnetic resonance imaging in evaluation of hydrocephalus in pediatric patients
Diagnosis | Conventional MR findings |
---|---|
Aqueductal stenosis | Triventricular dilatation |
Communicating hydrocephalus | Tetraventricular dilation |
Brain atrophy | Prominent central and peripheral CSF spaces |
Arnold–Chiari malformation | Triventricular dilatation Caudal cerebellar tonsillar herniation through foramen magnum |
Dandy–Walker variant | Mild ventricular dilatation. Hypoplastic vermis Cystic dilatation of posterior fossa |
Bilateral foramen of Monro obstruction | Colloid cyst seen at the site of foramen of Monro Dilation of both lateral ventricles |
Unilateral foramen of Monro obstruction | Asymmetry of both lateral ventricles being larger on the right side |
Lateral ventricular cyst | Mild ventricular dilation Large cyst occupying body of lateral ventricle |
Retrocerebellar arachnoid cyst | Posterior fossa cystic malformation Mild dilation of supra ventricular system |
Suprasellar arachnoid cyst | Large cyst occupying suprasellar cistern, compressing the third ventricle with mild dilatation of both lateral ventricles |