Explanation

Hypersecretion of mineralocorticoid (aldosterone) due to adrenal cortical tumour leads to Conn’s syndrome also called aldosteronism. It is characterised by (i) raise in blood volume and blood pressure (ii) muscular weakness (iii) high $NA^{+}$ and low $K^{+}$ level in blood plasma resulting in kidney damage with polyuria and tetany and metabolic disorder