LGMN, RGM-B, erythropoietin receptor (EpoR), interleukin-1 receptor type 2 (IL-1R2), thrombopoietin (TPO), and proneuregulin-1 (NRG1-b1) have seldom been reported to be related to AAA development, according to a literature review. The gene discussed is RGMB; the disease is triple-A syndrome.