A case of polycystic kidneys associated with a sarcomatoid variant of renal cell carcinoma is reported. The patient presented with hilar lymphadenopathy, para-aortic lymph node enlargement with an abnormal lymphangiogram and splenomegaly. Biopsy of the hilar lymph node, para-aortic lymph node and spleen showed reactive hyperplasia only but biopsy of the left kidney, liver and mesentery revealed poorly differentiated renal cell carcinoma with sarcomatous changes.
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Kumar et al. (1980) studied this question.
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