label: Familial Hyperaldosteronism Type 3
label_lc: familial hyperaldosteronism type 3
description: "Familial hyperaldosteronism caused by a mutation in the KCNJ5 gene, which encodes the inwardly rectifying potassium channel. This condition, characterized by hypokalemia and severe hypertension, presents during early childhood, and is unresponsive to glucocorticoid therapy."