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Renal artery stenosis

Case contributed by Jose Antonio Habana
Diagnosis certain

Presentation

Elevated blood pressure.

Patient Data

Age: 10 years
Gender: Female
ct

Severe stenosis of the proximal left renal artery. Left kidney enhances normally. No associated infarction or atrophy.

Case Discussion

Renovascular hypertension among children may be caused by fibromuscular dysplasia (most common), neurofibromatosis type I, vasculitis, extrinsic compression, and trauma. It accounts for 5-10% of childhood hypertension.

Doppler US has relatively low sensitivity for the diagnosis of renal artery stenosis. Both MR and CT angiography may be done, but CT angiography allows for superior image resolution.

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