In addition, Kim and colleagues found that the genetic variant rs17136627 of the KCNN2 gene was associated with CAA development in KD also by using patients with KD with only very large aneurysms (diameter > 5 mm; n = 17) and those without CAA (n = 123) for their KD CAA genome-wide screen39. Here, KCNN2 is linked to aneurysm.