Prior subarachnoid hemorrhage, from the right distal ICA (posterior communicating artery) aneurysm rupture which was treated with stent-assisted coiling technique. There is no evidence of acute ischemic or hemorrhagic lesion on the scan.Evolving right frontal lobe ventriculostomy track hematoma and the left frontal lobe ventriculostomy tube track also seen.Ventricular system appears to be enlarged in bilateral lateral ventricles and 3rd ventricle without showing any evidence of focal occlusion.Bilateral lateral ventricle frontal horn distance measured at the level of foramen of Monro is 47 mm which was measured around 41 mm. Frontal horn distance measured at levodopa on coronal scan is now 15.3 mm and was a 42.9 mm. Therefore, there is evidence of ventriculomegaly with associated periventricular high signal intensities on FLAIR images as well as T2-weighted images which indicate possible ventriculomegaly related edema.The paranasal sinuses and mastoid air cells are clear.3D time of flight MOTSA MRA brain images with maximum intensity projections of the anterior/posterior intracranial circulation demonstrate normal ICAs, MCAs and ACAs. Vertebrobasilar system appears to be normal.There is no evidence of recanalization of the right distal ICA aneurysm which was coiled using stent-assisted coiling technique.There is no evidence of new aneurysm or arterial luminal stenosis.
1. No evidence of acute ischemic or hemorrhagic lesion.2. Evolving right frontal ventriculostomy tube track hematoma.3. Ventriculomegaly with periventricular edema comparing to prior scan.4. No evidence of recanalization of the right distal ICA aneurysm treated with stent assisted coiling technique.