Presentation
4-day history of severe headaches with associated neck pain, vomiting and photophobia.
Patient Data

There is acute intraventricular haemorrhage within the bilateral lateral, third and fourth ventricles. This results in hydrocephalus.







There is an interval right frontal external ventricle drain with the tip lying in the right frontal horn at the foramen of Monro. There is an interval reduction in ventriculomegaly, with a reduction in the bifrontal diameter.
In the left temporal lobe, abutting the lateral ventricle is an area of abnormal heterogeneous density.
Case Discussion
This case demonstrates good placement of a right frontal external ventricular drain, with the tip lying at the foramen of Monro in a patient with intraventricular haemorrhage. This results in a significant interval reduction of ventriculomegaly.
The patient proceeded to a cerebral angiogram the day after surgery, confirming a left temporal periventricular arteriovenous malformation. The patient was referred to a Gamma Knife centre for consideration of treatment.