To investigate a mechanism for this clinical observation, we explored the function of OR2L13 in a murine model of fast-growing AAA that developed luminal thrombus, similar to human infrarenal AAA in which D-flow was observed in aneurysmal aortic regions (Supplemental Videos 2 and 3, ref. 26, and Supplemental Figures 8 and 9). Here, OR2L13 is linked to triple-A syndrome.