Case challenge · Imaging / Fetal medicine / Prenatal diagnosis · teaching

Fetal Microcephaly Diagnostic Workflow · 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 / Prenatal diagnosis

📋 Case data

HC measurement + distinguish FGR + causeHC <3 SD + simplified sulcation/cortical abnormality or associated anomalies/calcification

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

Step 1 / 1 · HC measurement + distinguish FGR + cause

HC measurement + distinguish from FGR + brain structure/cause?

💡 Microcephaly = HC <2 SD (severe <3 SD, for gestation and sex). Must distinguish from FGR (HC/AC, whether symmetrically small, serial measurement). Microcephaly often only apparent in the third trimester (serial HC). Sloping forehead. Check sulcation (simplified vs lissencephaly), calcification, associated anomalies.

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.