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Washington University Experience | VASCULAR | Aneurysm - Giant | 1A1 Aneurysm, giant, mass effect (Case 1) 14 copy
A giant saccular aneurysm (arrowhead) measuring 4 x 2 x 2 cms was found arising from the junction of the vertebral and basilar arteries. The aneurysm is filled largely with laminated thrombus, however there is a region of rupture on the anterior aspect. .