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Figure 1. A 22-year-old woman had had hypertension for one year. Her only symptom was an occasional headache. Examination revealed a blood pressure of 148/110 mm Hg, a vascular bruit on the left-hand side of the upper abdomen, and no cardiomegaly. The electrocardiogram was normal. Renal scanning with [99mTc]pentetic acid (DTPA) showed less uptake of the tracer in the left kidney than in the right, with a similar time to peak uptake (Panel A). The patient was then given 25 mg of captopril orally, and renal scanning was repeated one hour later. The curve for the left kidney . . . [Full Text of this Article] |