KCNJ5 and neoplasm: The study has limitations; the number of feline tumors was smaller than in recent whole exome sequencing and RNA sequencing of human APAs.12,13,18 It is, however, comparable to older studies, including the landmark discovery of KCNJ5 mutations.17,31,50,51 In the present study, it was assumed that the whole tumor was secreting aldosterone.