Slit ventricle syndrome: headaches. There is a right transparietal shunt catheter that terminates in the posterior third ventricle. Artifact related to the catheter reservoir obscures surrounding anatomy. There is also a right transfrontal catheter that terminates in the right frontal lobe. The third and lateral ventricles are diminutive, with relative prominence of the bilateral temporal horns, but unchanged in size. The fourth ventricle is unremarkable. There are minimal nonspecific punctate foci of T2 hyperintensity in the cerebral white matter. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There is no midline shift or herniation. The major cerebral flow voids are intact. There is microcephaly. The orbits, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
1. Unchanged diminutive appearance of the shunted supratentorial ventricular system, with relative prominence of the bilateral temporal horns, which can be a manifestation of slit ventricle syndrome.2. No evidence of acute intracranial hemorrhage, mass, or acute infarct.