Gariel F, Ben Hassen W, Boulouis G, et al. - Given the promising predictive value of absence of arterial wall enhancement (AWE) of unruptured intracranial aneurysms (UIA) for aneurysms that will not rupture, researchers here tested the hypothesis that elevated enhancement during follow-up (increased intensity, extension, or thickness or appearance of de novo enhancement), assessed using vessel wall magnetic resonance imaging, was linked with greater rates of subsequent growth. They assessed a total of 129 patients harboring 145 UIA (mean size 4.1 mm); of these, 12 (8.3%) displayed morphological growth at 2 years. Findings support the predictive value of raised AWE during follow-up of conservatively managed UIAs for aneurysm growth over a 2-year period. This may influence UIA management towards closer monitoring or preventive treatment.