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Epinephrine effect in the vascular pattern of a renal lipoma.

Abstract A case of renal lipoma is reported, in which the arterial wall showed little vasoconstrictive response to epinephrine. This adds another consideration to the differentiation of renal mass evaluation by selective angiography with epinephrine. It is believed that other factors than arterial smooth muscle determine the degree of arterial response to epinephrine.