Diagnosis of Adrenocortical Carcinoma with Hypercortisolism in a Patient Presenting with Hypokalemic Metabolic Alkalosis.

Adrenocortical carcinoma (ACC) is a rare malignancy with an estimated annual incidence of 0.7-2 cases per million. Most patients present with steroid hormone excess or abdominal mass effects, but 15% of patients with ACC are diagnosed incidentally.