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Two cases of renal oncocytoma (proximal tubular adenoma) with a similar angiographic appearance are reported. The vascular supply to the lesion tends to be arranged in "spoke-wheel" pattern with vessels radiating toward the center of the lesion; the angiographic appearance may help to differentiate renal oncocytoma from hypernephroma preoperatively.
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Weiner et al. (1977) studied this question.
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