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SUMMARY Three cases of rare primary renal sarcoma have been reported and described (one case each of leiomyosarcoma, fibrosarcoma and nephroblastoma in an adult). The relevant literature has been reviewed and discussed. A total of 32 cases of leiomyosarcoma, 107 cases of fibrosarcoma and 126 cases of nephroblastoma in adults have been collected from the world literature, and analysed.
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Gupta et al. (1971) studied this question.
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