 BRAIN MRI There is normal left ventricular size with normal patency of all the basal cisterns. There is no evidence of hemorrhage or infarction. There are no mass effect. No abnormal signal is seen in T2 or FLAIR. There are no abnormal enhancements. No midline shift. No extra-axial fluid collection.There are no foci of diffusion restriction. There are no abnormalities seen in the susceptibility images.BRAIN MRAThe brain MRA demonstrates wide neck cavernous aneurysm of the left internal carotid artery measuring 11 x 7 mm axial dimensions which originates from the lateral wall of the horizontal segment of the left cavernous internal carotid artery. The neck of the aneurysm measures 7 mm. The aneurysm is extends laterally to the left cavernous sinus lateral wall. There is no change in the size of the aneurysm since the previous study. The aneurysm drapes around the adjacent left anterior clinoid processNo other aneurysms are appreciated intracranially. There is no evidence for intracranial cerebrovascular arterial stenosis. Note is made that the posterior communicating arteries are small bilaterally. The anterior communicating artery is small to medium sized. The left vertebral artery is larger than the right vertebral artery. Basilar artery is of normal caliber.
1. 11mm left internal carotid artery cavernous segment wide neck aneurysm with a 7 mm neck. The aneurysm is unchanged in size since the previous study of 6/27/2015.2. No evidence for intracranial mass lesion.