Author/Authors :
Kim, Min Jung Department of Internal Medicine - Pusan National University School of Medicine, Yangsan , Kim, Joo Hui Department of Internal Medicine - Pusan National University School of Medicine, Yangsan , Kim, Il Young Department of Internal Medicine - Pusan National University School of Medicine, Yangsan , Lee, Dong Won Department of Internal Medicine - Pusan National University School of Medicine, Yangsan , Lee, Soo Bong Department of Internal Medicine - Pusan National University School of Medicine, Yangsan
Abstract :
Reninoma is a tumor that secretes excessive renin and is a rare
cause of secondary hypertension. We report a case of reninoma with
delayed diagnosis in a 33-year-old woman taking an angiotensin
receptor blocker. During angiotensin receptor blocker medication,
she had exhibited no electrolyte abnormality. The angiotensin
receptor blocker was stopped for pregnancy planning purposes,
and subsequent hypokalemia was observed. Abdominal computed
tomography showed an enhanced round mass in the right kidney.
Right partial nephrectomy was performed and the renal mass was
removed. Histologic findings confirmed a diagnosis of reninoma.
The patient’s blood pressure and serum potassium remained
normal after surgery. Diagnosis of reninoma might be delayed
in patients taking angiotensin receptor blockers because they can
mask hypokalemia due to reninoma.
Keywords :
angiotensin receptor blocker , reninoma , hypokalemia , hypertension
