症例 challenge · Imaging / Fetal medicine / Pediatric neurosurgery · teaching

Fetal Aqueductal Stenosis (Obstructive Hydrocephalus) · case challenge

Given a case, work through the care pathway step by step; the tool checks each choice and scores you. Decisions and basis are taken from this site's reviewed care pathways.

← View the full flowchartBased on Fetal neuro MRI

Case #1Imaging / Fetal medicine / Pediatric neurosurgery

📋 Case data

Lateral/third ventricle + fourth ventricle + aqueduct signsLateral + third ventricle dilation, normal fourth ventricle, funnel-shaped aqueduct/intra-aqueductal blood or web

Data is taken from this pathway's reviewed node text. Work through the pathway step by step.

Step 1 / 1 · Lateral/third ventricle + fourth ventricle + aqueduct signs

Lateral/third ventricle dilation + fourth ventricle + aqueduct signs?

💡 Aqueductal stenosis = non-communicating hydrocephalus (aqueduct obstruction) → lateral + third ventricle dilation with a normal fourth ventricle (key differentiation). Progressively raised ICP, ventricles often progressively enlarge.

For teaching. Decisions and their basis are taken from this site's reviewed care pathways; for licensed clinicians/trainees, this does not replace clinical judgment or local protocols.