[Radiological signs of primary sarcoma of the kidney in adults : a report on 5 cases (author's transl)].
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Primary sarcomas of the kidney are extremely uncommon and the results of their angiographic study are rarely reported. A study of five cases that were confirmed histologically demonstrates the absence of specific clinical and urographic findings. Arteriographic appearances are variable and not related to the histological type. The poorly vascularized forms are traditionally the most frequent (2 out of 5 cases) but are not fundamentally different from adenocarcinomas. The diagnosis can be suspected, however, when there is an infiltrating peripheral tumor extending well beyond the capsule. The hypovascularized pseudocystic forms raise the same arteriographic problems as the adenocarcinomas. Arteriography can diagnose malignancy, but the diagnosis of sarcoma is usually impossible before operation.
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