An elderly man presented with a 2-year history of refractory hypertension. His medical history, physical examination and laboratory findings were unremarkable. On subsequent ultrasound study for the evaluation of renal artery stenosis, a large mass obliterating the adrenal gland containing internal cystic structures was identi fied. A CT study confirmed the diagnosis of primary adrenal gland hydatid cyst. Following surgical resection, the patient's hypertension resolved and medications to control blood pressure were discontinued.
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