FIG 1. A 75-year-old woman with a history of melanoma and resected atrial myxoma.

A–C, Axial T1-weighted (600/18/2 [TR/TE/excitations]) postcontrast MR images demonstrate several enhancing foci within the subarachnoid space (arrowheads), consistent with aneurysms of the right middle cerebral artery.

D, Coronal postcontrast T1-weighted MR image (600/15/1) demonstrates contrast-enhancing aneurysm of the right middle cerebral artery (arrowhead) and left posterior parietal arteries (arrow).

E, Axial T2-weighted (3000/80/1) MR image. The aneurysm demonstrates a low signal intensity flow void, consistent with a patent aneurysm.

F, Digital subtraction angiography (DSA), anteroposterior view, of the right internal carotid artery demonstrates multiple arterial dilatations, the largest of which is located in the angular branch of the right middle cerebral artery.

G, DSA, lateral view, of the right internal carotid artery demonstrates multiple fusiform aneurysms in the distribution of the right middle cerebral artery. T1-weighted postcontrast image (600/15/1) demonstrates an enhancing left middle cerebral aneurysm (white arrow) and an area of low signal intensity suggestive of old infarction (arrowheads).