FIG 2. A 73-year-old woman with a history of multiple strokes and resected cardiac myxoma.

A, Axial proton density–weighted (2800/40/1) image demonstrates a low signal intensity flow void consistent with a patent aneurysm in the pericallosal artery (white arrow). An area of increased signal intensity is consistent with old infarction (black arrows).

B, Axial T1-weighted (600/20/1) postcontrast image reveals enhancement of multiple fusiform lesions surrounded by regions of low signal intensity, consistent with myxomatous aneurysms (arrows).

C, Coronal 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).