title: Raised intracranial pressure not detected by ultrasound.
abstract: Two patients with raised intracranial pressure responding to ventriculoperitoneal shunting are described in whom ultrasound failed to show dilated ventricles. The importance of not equating absence of ventricular dilatation with normal pressure and ventricular dilatation with high pressure is emphasised.
mesh_terms: D003951:Diagnostic Errors; D006801:Humans; D007223:Infant; D007427:Intracranial Pressure; D014463:Ultrasonography