A case of choriocarcinoma and undifferentiated cell carcinoma of the bladder is reported. Transitional cell carcinoma was found initially in the bladder wall and in the terminal stage there was clinical evidence of production of gonadotropin. The concept of choriocarcinoma mimicry would supplant the explanation for the pathological features in this case.
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Kawamura et al. (1979) studied this question.
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